Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

FIREARM BUFFER SYSTEM AND BUTTSTOCK ASSEMBLY

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein. 15-. (canceled)6. A buttstock assembly for use with an autoloading firearm comprising:a housing having a longitudinally extending interior bore constructed with a front opening and a rear opening, said front opening is smaller in diameter than said interior bore, between said front opening and said interior bore there is defined an annular shoulder, said housing defining a comb about its exterior surface;a shoulder stock having a front side and back side with a opening extending therebetween, said shoulder stock has a means to slidably connect with said housing;a receiver extension which is generally cylindrical in shape defining a longitudinally extending interior bore extending between a front end of said receiver extension to an interior back end wall, defined about the exterior are at least two circumferential bands having an outer diameter that is in contact with said interior bore of said housing when coupled therewith;when said receiver extension is coupled to said housing, the forward most circumferential band bears against said annular shoulder of said housing thereby securing both said receiver extension and said housing to the autoloading firearm.7. The buttstock assembly of claim 6 , further comprised of two guide rods which are secured to the front side of said shoulder stock claim 6 , said housing defines two ...

Firearm buffer system and buttstock assembly

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein.

ADJUSTABLE GAS BLOCK FOR AN INDIRECT GAS OPERATED FIREARM

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas. 18-. (canceled)9. An adjustable gas block for an indirect gas operated firearm , wherein the adjustable gas block comprises:a nozzle comprising a forward end and back end, wherein said nozzle comprises a plurality of ports spaced about the forward end of the nozzle, and wherein each of said plurality of ports can be selectively placed into communication with a barrel gas port of said firearm;a gas block housing having a barrel receiving channel, and a cylindrical bore with a port, wherein said cylindrical bore receives said gas nozzle, and wherein said gas block housing comprises a groove formed therein to receive a rotatable knob, said groove running transverse to an axis of a barrel of said firearm and between a forward end of said cylindrical bore and a generally planar, rearwardly facing portion of said gas block housing; anda rotatable knob that receives and rotates the nozzle within said cylindrical bore, and said knob is removably retained by a spring loaded detent and ball, and said spring and detent work in conjunction with a series of notches present on said knob to prevent unintentional rotation of said knob, and said spring provides a force to said ball which interacts with said notches.10. The adjustable gas block ...

BARREL NUT ASSEMBLY AND METHOD TO ATTACH A BARREL TO A FIREARM USING SUCH ASSEMBLY

A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein.

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein.

Firearm receiver assembly

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another.

FIREARM BUFFER SYSTEM AND BUTTSTOCK ASSEMBLY

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein. 111.-. (canceled)12. A buttstock assembly for use with a gas operated firearm comprising:shoulder stock;two guide rods with notches; anda housing comprising an exterior and an interior with said interior defining a longitudinally extending circular bore sized to receive a buffer tube and being specifically sized for contact between circumferential ridges and an interior of said longitudinally extending circular bore; said housing having a forward face comprising a protrusion to engage an opening on a lower receiver of said gas operated firearm; said housing defining three openings, wherein one of said three openings is sized to allow passage of a threaded portion of a buffer tube and said one of said three openings is smaller in diameter than said longitudinally extending circular bore thereby creating an internal shoulder between said opening and said longitudinally extending circular bore, and wherein two of said three openings are smaller openings to receive and support a portion of a guide rod;wherein said shoulder stock is mated with said two guide rods, which are mated with said housing to form a portion of said buttstock assembly.13. The buttstock assembly of claim 12 , wherein said housing comprises an exterior with a cheek piece contoured and shaped into a surface of said exterior.14. The buttstock assembly of claim 12 , ...

Adjustable gas block for a gas operated firearm

An adjustable gas block for a gas operated firearm is provided that offers the user a means by which the volume of gas being directed to the host rifle's operating system can be adjusted. The adjustable gas block provides two positions of adjustment, with the position of use being selected based on whether or not a back pressure increasing device, such as a noise suppressor or a silencer, is mounted on the firearm. A first position provides the optimal volume of gas into the gas operating system for it to operate properly based on its factory configuration and in the absence of a back pressure increasing device. A second position is available for use when the back pressure is increased due to the presence of a back pressure increasing device. The second position exposes a port through which a portion of the volume of gas from the barrel is vented into a secondary chamber prior to being released into the atmosphere. By venting a portion of the gas into a secondary chamber, the amount of gas received by the operating system is reduced to a volume that is substantially equal to the volume of gas that would be received by the operating system in the absence of a back pressure increasing device. No tools are required to select either of the positions provided by the gas block.

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

A firearm barrel nut assembly including barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver.

Rifle charging handle

An ambidextrously operated charging handle for use with the M16 family of firearms is provided. The charging handle provides a latch mechanism consisting of two extended handles which are in operational communication with each other. Either handle may be independently retracted to disengage the latch mechanism of the charging handle from the host firearms receiver. The spring-biased mechanism of the charging handle is sheltered within the interior of the charging handle thereby protecting it from the elements. Further, an improved axial pin has been provided to secure the handles of the latch mechanism to the grasping portion of the charging handle.

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Adjustable gas block for an indirect gas operated firearm

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas.

Ambidextrously operated bolt catch assembly

An ambidextrously operated bolt catch assembly for a firearm facilitates ease of use by either right handed or left handed shooters. The ambidextrous bolt catch assembly includes two levers, one on each side of the firearm, that interact with each other. Each lever has a primary contact surface and a secondary contact surface. By depressing the primary contact surface of either lever, both levers rotate to move the bolt catch assembly from a displaced position to a static position. Conversely, by depressing the secondary contact surface of either lever, both levers rotate to move the bolt catch assembly from a static position to a displaced position.

Firearm buffer system and buttstock assembly

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein.

RIFLE CHARGING HANDLE

An ambidextrously operated charging handle for use with the M16 family of firearms is provided. The charging handle provides a latch mechanism consisting of two extended handles which are in operational communication with each other. Either handle may be independently retracted to disengage the latch mechanism of the charging handle from the host firearms receiver. The spring-biased mechanism of the charging handle is sheltered within the interior of the charging handle thereby protecting it from the elements. Further, an improved axial pin has been provided to secure the handles of the latch mechanism to the grasping portion of the charging handle. 120.-. (canceled)21. A charging handle assembly for a rifle having a receiver , comprising:a body portion comprising a shaft integrally connected to a transverse member constructed as a grasping handle at a rearward end;said grasping handle comprising a rotatable handle with an integral hook;said grasping handle comprising a recess;said rotatable handle comprising a body portion with said integral hook located at a distil end of said rotatable handle connected to a grasping surface, wherein said rotatable handle is within said recess located of said grasping handle;said rotatable handle comprising a protrusion located at a proximal end of said rotatable handle;said body portion comprising a bolt carrier engagement portion at a forward end of said shaft;said rotatable handle is housed within a recess formed between a top surface and a bottom surface of a left side of said grasping handle;a longitudinal opening located on a backside of said grasping handle, with said longitudinal opening sized to receive a spring and a plunger and extending longitudinally along a portion of a main axis of said body portion perpendicular to an interior aperture;a spring and a plunger, said plunger comprising at least one recess, and said spring and plunger being housed within said longitudinal opening;an axial pin attaching said rotatable ...

TOP OPENING, MODULAR TOP RAIL, MULTI-RIFLE ADAPTABLE FREE FLOAT RAIL ADAPTOR SYSTEM (ARM-R)

An improved Rail Adaptor System/Rail Accessory System (RAS) which attaches to a firearm. The rail is top opening, modular, and free floats the barrel. Provided is a rigid, lightweight, strong platform for mounting firearm accessories. Heat transmission from the barrel assembly to the user is limited. The user is also protected from ventilated gases originating from the operating system. A quick detachable top rail section is provided so that that gas system may be easily accessed. This removable top section of the rail is what makes this device unique because the RAS may be installed without removing the barrel, gas system, front sight base, flash hider or the barrel nut. The herein described RAS is adaptable to a wide variety of firearms with the use of conversion parts. The top rail “returns to zero” on reinstallation allowing the remounting of various optics and electronic gun sites without the need to realign them. 110-. (canceled)11. A top opening , modular top rail , multi-rifle adaptable free float rail accessory system (RAS) for use with a firearm having a receiver , a barrel , and a barrel nut which secures the barrel to the receiver , the RAS comprising:a top portion having longitudinally extending lower, edges with a plurality of recesses spaced apart along said edges;a bottom portion having a rearward end machined to receive a bottom part of the barrel nut, a forward face with receptacles formed therein, and longitudinally extending upper edges, each edge having a groove with longitudinally spaced openings therein;a plurality of pins received in said openings and oriented to removably engage with said plurality of recesses located on said top portion when the top portion is mounted to the bottom portion, said top portion being translatable in one of a forward direction or rearward direction relative to the bottom portion to position the pins within said recesses to mount the top portion to the bottom portion;a clamp assembly having a top piece with a ...

Self loading firearm bolt carrier with integral carrier key and angled strike face

A bolt carrier for use with the AR15/M16 family of firearms is provided. The bolt carrier includes an integrally formed carrier key and spherical strike face surrounded by a cylindrical counterbore made with a downward angle to act against the tilting force imparted by the operating rod of the firearm's gas operating system. The outer surface of the carrier includes upper and lower running rails that all extend fully to the front face of the carrier to lengthen the carrier's rail support or bearing surfaces against the receiver. To improve the robust operation of the firearm in over the beach operations, the bottom and rear of the receiver extension has drain holes formed through which water is forced out of the receiver extension by the reciprocating action of the bolt carrier when the weapon is fired. In dry conditions, the firearm is protected against jamming by relief or sand cuts formed in the running rails which provide recesses for dirt to accumulate during operation so as not to interfere with movement of the bolt assembly. 1. A bolt carrier for a gas-operated automatic or semi-automatic firearm comprising an elongated generally cylindrical body having a forward end with a front face , a rearward end , an upper exterior surface , and a lower exterior surface , said upper exterior surface having an integrally formed carrier key and strike face with a counterbore to support an operating rod in contact with the strike face , said strike face and counterbore being downwardly angled.2. The bolt carrier as set forth in claim 1 , wherein the strike face and counterbore are angled downwardly at an angle of between about 0.05 degrees and about 5.0 degrees.3. The bolt carrier as set forth in claim 2 , wherein the bolt carrier further includes upper rails and lower rails for contacting a receiver of said weapon claim 2 , said upper rails extending up to said front face.4. The bolt carrier as set forth in claim 3 , wherein said rails have debris relief cuts formed ...

Ambidextrously operated bolt catch assembly

An ambidextrously operated bolt catch assembly for a firearm facilitates ease of use by either right handed or left handed shooters. The ambidextrous bolt catch assembly includes two levers, one on each side of the firearm, that interact with each other. Each lever has a primary contact surface and a secondary contact surface. By depressing the primary contact surface of either lever, both levers rotate to move the bolt catch assembly from a displaced position to a static position. Conversely, by depressing the secondary contact surface of either lever, both levers rotate to move the bolt catch assembly from a static position to a displaced position. 1. A firearm with an ambidextrously operated bolt catch assembly , comprising:a receiver;a bolt carrier group having a bolt; and a bolt engagement element configured for moving between a displaced position in which said bolt engagement element engages the bolt of the firearm to hold the bolt in a locked-back position, and a static position in which said bolt engagement element moves out of a path of said bolt to allow the bolt carrier group to go to a battery position;', 'a primary bolt catch operating lever located on one side of the receiver and operably connected to the bolt engagement element; and', 'a secondary bolt catch operating lever located on the opposing side of the receiver in operational contact with the bolt engagement element, said operating levers being configured so that pressure applied to either lever from either side of the receiver pivots both levers simultaneously to move said bolt engagement element between said static position and said displaced position., 'a bolt catch assembly including,'}2. The firearm with an ambidextrously operated bolt catch assembly of claim 1 , wherein the primary bolt catch operating lever and the bolt engagement element are a single unitary element.3. The firearm with an ambidextrously operated bolt catch assembly of claim 2 , wherein said secondary bolt catch ...

Receiver for an autoloading firearm

Improved receiver set for an indirect or direct gas operated firearm wherein the charging handle has been moved to the side of the upper receiver, the magazine well has been flared open to better receive a magazine, and the lower receiver has a semi-circular shelf in the rear which supports the proximal end of the bolt carrier as it is longitudinally displaced due to firing of the weapon.

TOP OPENING, MODULAR TOP RAIL, MULTI-RIFLE ADAPTABLE FREE FLOAT RAIL ADAPTOR SYSTEM (ARM-R)

An improved Rail Adaptor System/Rail Accessory System (RAS) which attaches to a firearm. The rail is top opening, modular, and free floats the barrel. Provided is a rigid, lightweight, strong platform for mounting firearm accessories. Heat transmission from the barrel assembly to the user is limited. The user is also protected from ventilated gases originating from the operating system. A quick detachable top rail section is provided so that the gas system may be easily accessed. This removable top section of the rail is what makes this device unique because the RAS may be installed without removing the barrel, gas system, front sight base, flash hider or the barrel nut. The herein described RAS is adaptable to a wide variety of firearms with the use of conversion parts. The top tail “returns to zero” on reinstallation allowing the remounting of various optics and electronic gun sites without the need to realign them. 1. A top opening , modular top rail , multi-rifle adaptable free float rail accessory system (RAS) for use with a firearm having a receiver , a barrel , and a barrel nut which secures the barrel to the receiver , the RAS comprising:a top portion having longitudinally extending lower edges with a plurality of recesses spaced apart along said edges;a bottom portion having a rearward end machined to receive a bottom part of the barrel nut, a forward face with receptacles formed therein, and longitudinally extending upper edges, each edge having a groove with longitudinally spaced openings therein;a plurality of pins received in said openings and oriented to removably engage with said plurality of recesses located on said top portion when the top portion is mounted to the bottom portion, said top portion being translatable in one of a forward direction or rearward direction relative to the bottom portion to position the pins within said recesses to mount the top portion to the bottom portion;a clamp assembly having a top piece with a center portion having ...

AUTOMATIC RIFLE BOLT CARRIER WITH FLUTED BOSS

An automatic rifle bolt carrier with a fluted boss for the AR15/M16 family of firearms has been provided. The rear of the bolt carrier has been provided with a boss having bearing surfaces which are in operational contact with the interior of the host firearm's upper receiver to prevent the carrier from tilting while it is reciprocating during normal operation. The boss and rearward end of the bolt carrier are provided with flutes which allow water to flow between the buffer tube and upper receiver while the bolt carrier is reciprocating during normal operation, enabling a properly equipped firearm to be used during over the beach operations. The bolt carrier also includes a scallop cut located about the top of its backmost end which is perpendicular to the longitudinal axis of the bolt carrier. 1. A bolt carrier for an automatic rifle comprising an elongated cylinder having a forward end and a rearward end as said bolt carrier is positioned in said automatic rifle , said rearward end being provided with a boss having an outer diameter that is in contact with an interior of a receiver of said automatic rifle when said bolt carrier is assembled therewith , said rearward end having an external surface with a plurality of flutes evenly spaced apart thereon , said plurality of flutes being recessed into said external surface of said bolt carrier , located between said rearward end and said forward end there is formed an opening through a top surface and a bottom surface of said bolt carrier which is configured to allow a hammer to extend into and strike a firing pin.2. The bolt carrier as set forth in claim 1 , wherein said flutes are substantially parallel to a longitudinal axis of said bolt carrier.3. The bolt carrier as set forth in claim 2 , wherein said flutes extend from a backmost part of said rearward end of said bolt carrier.4. The bolt carrier as set forth in claim 3 , wherein said bolt carrier is further comprised of a gas key which is an integral part of ...

Self loading firearm bolt carrier with integral carrier key and angled strike face

A bolt carrier for use with the AR15/M16 family of firearms is provided. The bolt carrier includes an integrally formed carrier key and spherical strike face surrounded by a cylindrical counterbore made with a downward angle to act against the tilting force imparted by the operating rod of the firearm's gas operating system. The outer surface of the carrier includes upper and lower running rails that all extend fully to the front face of the carrier to lengthen the carrier's rail support or bearing surfaces against the receiver. To improve the robust operation of the firearm in over the beach operations, the bottom and rear of the receiver extension has drain holes formed through which water is forced out of the receiver extension by the reciprocating action of the bolt carrier when the weapon is fired.

BARREL NUT ASSEMBLY AND METHOD TO ATTACH A BARREL TO A FIREARM USING SUCH ASSEMBLY

A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein. 1. A method of securing a barrel having an annular flange and a extension member proximate to a rear end of the barrel to a firearm using a barrel nut , a locknut and a fixture , the fixture being comprised of a movable mandrel , a base and a clamp which are configured to receive a receiver of the firearm and the barrel nut and restrain both from rotational movement , the mandrel of the fixture is configured to be received within the receiver of the firearm and engage with the extension member of said barrel , the base is configured to receive a portion of the receiver and the barrel nut with the clamp assembly further assisting in the retention of the receiver and thereby the barrel nut to the base , the receiver having an externally threaded front end part which is configured to be threadedly engaged within a rear end of the barrel nut , the barrel nut having an internally threaded central bore that receives the extension member of the barrel and a bushing with a bore therethrough which aligns with an opening located on the front face of the firearm receiver , the bore in the bushing and the opening in the firearm being configured to receive a part of the firearm's operating system therein , the lock nut being configured to slide onto and down the barrel and having external threads to threadedly engage with internal threads on a front end of the barrel nut bore , the ...

RIFLE CHARGING HANDLE

An ambidextrously operated charging handle for use with the M16 family of firearms is provided. The charging handle provides a latch mechanism consisting of two extended handles which are in operational communication with each other. Either handle may be independently retracted to disengage the latch mechanism of the charging handle from the host firearms receiver. The spring-biased mechanism of the charging handle is sheltered within the interior of the charging handle thereby protecting it from the elements. Further, an improved axial pin has been provided to secure the handles of the latch mechanism to the grasping portion of the charging handle. 1. A charging handle for a rifle having a receiver , comprising:a body portion comprised of a shaft having a transverse member at a rearward end and a bolt carrier engagement portion at a forward end;a latch mechanism comprised of a primary handle defining a latch element on it's front end and a protruding member on its back end, a secondary handle defining a protruding member on its back end, a spring and a plunger;said latch mechanism is moveable between a first position and a second position, said first position placing said latch element into contact with the firearm receiver, said second position disengaging said latch element from the firearm receiver;said primary handle and said secondary handle are secured to said transverse member, said plunger provides a means of placing said primary handle and said secondary handle into communication whereby the rotation of one handle results in the simultaneous rotation of the other handle and the movement of said latch element;2. The charging handle of claim 1 , wherein said spring and at least a portion of said plunger are housed within a longitudinally extending opening in the backside of said transverse member.3. The charging handle of claim 1 , further comprised of two axial pins which secure said primary handle and said secondary handle to said transverse member and ...

BARREL NUT ASSEMBLY AND METHOD TO ATTACH A BARREL TO A FIREARM USING SUCH ASSEMBLY

A firearm barrel nut assembly including a barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver. 1. A barrel nut assembly for connecting a firearm barrel to the receiver of a gas operated rifle , said barrel nut assembly comprising:a barrel nut which is generally cylindrical in shape and defines a generally longitudinally extending bore extending from a back end of said nut along a longitudinal axis to a front end of the nut, said bore having internal threads to be secured at the rear end to an externally threaded front end part of the receiver, the front end of said bore being configured to receive a rear end portion of the firearm barrel therein; anda locknut having external threads that engage with the internal threads in the barrel nut bore, enabling the locknut to be threadedly received within and connected to the barrel nut, said locknut being configured to compressively engage and secure said firearm barrel in position against said receiver as the locknut is screwed into the barrel nut and tightened to a preset torque value, a rotational orientation of said barrel nut about the barrel being independent of torque applied to the locknut.2. The barrel nut assembly of claim 1 , wherein a forward face of said barrel nut has an external structure configured to be captured within a fixture used to secure the receiver and ...

BOLT CARRIER AND BOLT FOR GAS OPERATED FIREARMS

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability. 1. A bolt carrier for an automatic rifle comprising:an elongated generally cylindrical body having a forward end and a rearward end as said bolt carrier is positioned in said automatic rifle, a bottom side and a top side, said top side is provided an integrally formed gas key;an extension nozzle;a means by which said extension nozzle and said gas key may be secured together is provided, said extension nozzle extends from the forward end of said gas key, generally parallel to the longitudinal axis of said bolt carrier, said extension nozzle is designed to receive a portion of the gas system of an automatic rifle.2. The bolt carrier as set forth in claim 1 , wherein said gas key has a threaded opening about its forward side claim 1 , said extension nozzle has a threaded portion about is rearward end which is sized to be threadedly received by said gas key's threaded opening.3. The bolt carrier as set forth in claim 1 , wherein said extension nozzle's rearward end is constructed to be secured within the forward opening of said gas key through a press fit.4. The bolt carrier as set forth in claim 1 , wherein the bolt carrier houses a firing pin and a ...

FIREARM RECEIVER ASSEMLBY

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another. 1. An upper receiver assembly for use with a firearm having a gas operating system , the upper receiver assembly comprising:a barrel assembly having a barrel, an annular flange about a back end of said barrel and a lock nut encircling a portion of the barrel; andan upper receiver including a front end having a generally cylindrical receiver extension extending therefrom, a forward end of said receiver extension having a generally cylindrical opening with a threaded interior into which the back end of said barrel assembly is received, said front end having a bearing surface against which said annular flange of the barrel assembly rests, said threaded interior constructed to cooperate with threads on an outer surface of said lock nut so that said locknut, when threadedly secured inside the receiver extension, mounts said barrel assembly directly to said receiver extension of said upper receiver.2. The receiver assembly of claim 1 , further comprising a handguard assembly having a bottom segment and a separable top segment claim 1 , a rear portion of said bottom segment being generally cylindrical with a correspondingly cylindrical inner bore claim 1 , a forward end of said receiver extension being received within said bottom segment inner bore and held therein to secure the handguard assembly directly to the receiver extension.3. The receiver assembly of claim 2 , further comprising a plurality of ...

ADJUSTABLE GAS BLOCK FOR A GAS OPERATED FIREARM

An adjustable gas block for a gas operated firearm offering a means to adjust a volume of gas directed to the host rifle's operating system. The adjustable gas block provides two positions of adjustment that are selectable based on the presence of a pressure increasing device being mounted on the firearm. A first position provides an optimal volume of gas into the gas operating system absent a back pressure increasing device. A second position usable in the presence of a back pressure increasing device causing venting of a portion of the volume of gas into a secondary chamber prior to release into the atmosphere. The amount of gas received by the operating system due to venting is reduced to a volume that is substantially equal to the volume of gas that would be received by the operating system absent a back pressure increasing device. 1. A gas operated firearm comprising:a receiver;a barrel having a gas port, and being attached to the receiver;a gas operating system; a housing having a barrel receiving channel for receiving a portion of the barrel therein and a gas nozzle receiving channel for receiving a portion of a gas nozzle therein;', 'a gas nozzle having a bore which is in gas flow communication with said gas operating system and at least a first port and a second port, a front end of said gas nozzle being inserted into said gas nozzle receiving channel, and said first port being in operational communication with the gas port of said barrel; and', 'an adjustment knob having a central bore which receives the front end of said gas nozzle and is configured to be secured thereto, said adjustment knob configured to be manually rotated by a user between a first position and a second position to regulate an amount of gas which exits said gas nozzle into said gas operating system according to whether or not a back pressure increasing device is attached to the barrel., 'an adjustable gas block including,'}2. The gas operated firearm as set forth in claim 1 , wherein ...

BOLT CARRIER AND BOLT FOR GAS OPERATED FIREARMS

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8 SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability. 1. A bolt for a firearm , the bolt comprising:a generally cylindrical body having a front end and a rear end and a body portion extending therebetween, near said front end there is a mating surface located within a recess against which the base of an ammunition cartridge rest, said mating surface has a gap therein to accommodate a portion of an extractor and defines a plane which is perpendicular to the longitudinal axis of said bolt;said body of the bolt defines an extractor recess and includes at least a first bolt lug and a second bolt lug located adjacent to said bolts distal end, said first and second bolt lugs extending radially outwardly from the exterior of said body portion;an extractor having a forward end, a back end and a body portion extending therebetween, said forward end having a portion being configured to engage the rim of an ammunition cartridge, said forward end of said extractor is wider than said body portion of the extractor;said first bolt lug and said second bolt lug define a gap therebetween which is in communication with, ...

FIREARM RECEIVER ASSEMBLY

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another. 118.-. (canceled)19. An upper receiver assembly for use with a gas operated firearm having a gas operating system , the upper receiver assembly comprising:a barrel having an annular flange about its back end;a lock nut fitted around a portion of said barrel;an upper receiver having a front end having an integral receiver extension extending therefrom, said receiver extension substantially shaped like a circular, elongated cylinder with a top portion of cylinder wall removed, a forward end of said receiver extension having an incomplete circular opening with a threaded interior, and wherein a forward face of upper receiver includes an opening in communication with a channel that runs approximately parallel to a longitudinal axis of said upper receiver assembly, wherein said opening has a forward end and a rearward end, said opening being wider at said forward end, gradually tapering down in diameter along its length towards said rearward end; anda single unit handguard comprising an upper and a lower portion with the lower portion having a rearward end machined to receive and be secured to the receiver extension by fasteners configured to removably secure said lower portion of said handguard to said receiver extension.20. The upper receiver assembly of claim 19 , wherein a rear portion of said lower portion is substantially cylindrical with a correspondingly cylindrical inner bore;a forward end of ...

FIREARM BUFFER SYSTEM AND BUTTSTOCK ASSEMBLY

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein. 1. A bolt carrier assembly for a gas-operated firearm comprising a bolt carrier having a forward end and a rearward end as said bolt carrier is positioned in said gas-operated rifle , said rearward end defining an enclosed longitudinally extending opening , said enclosed longitudinally extending opening receiving at least a portion of a weighted buffer therein , said weighted buffer having a back end which is larger in diameter than said enclosed longitudinally extending opening.2. The bolt carrier assembly as set forth in claim 1 , wherein said weighted buffer has a front end which is larger in diameter than said enclosed longitudinally extending opening claim 1 , a body portion of said weighted buffer extends between said front end and said back end claim 1 , said body portion is configured to be housed within said enclosed longitudinally extending opening thereby facilitating limited longitudinal movement of said buffer therein.3. The bolt carrier assembly as set forth in claim 2 , wherein said weighted buffer has the general shape of a barbell claim 2 , the back end of said buffer is integrally attached to said body portion claim 2 , said front end has an opening configured to receive a portion of said body portion therein claim 2 , a means is provided to secure said front end to said body portion.4. The bolt carrier assembly ...

BOLT CARRIER AND BOLT FOR GAS OPERATED FIREARMS

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability. 1. A method of manufacturing a bolt carrier for a direct gas operated rifle having an integral gas block with a thru bore in communication with the interior of said bolt carrier , wherein an extension nozzle having a threaded portion and an opening for a pin , the opening runs perpendicular to a forward opening into the interior of said extension nozzle , the extension nozzle is secured to the forward opening of said thru bore of said gas block and is designed to receive a portion of the rifle's gas operating system , the method comprised of:a bolt carrier having an integral gas block about its top surface, wherein a hole is milled at an angle, through the top surface of said gas block, through said gas block interior opening and into an interior opening of said bolt carrier which is configured to receive a bolt, the forward opening of the thru bore present on said integral gas block is threaded, an opening which is perpendicular to said forward opening is milled through said gas block near its back side and sized to receive a pin;said extension nozzle is threadedly secured to said forward opening of said gas block, the extension nozzle is ...

FIREARM RECEIVER ASSEMLBY

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another. 1. An upper receiver assembly comprising:a front end having a receiver extension extending therefrom,said receiver extension is substantially shaped like an elongated cylinder with its top portion removed,a forward end of said receiver extension having an approximately semi-circular opening with a threaded interior.2. (canceled)3. The upper receiver assembly of claim 1 , further comprising a plurality of fasteners received within aligned openings in the receiver extension.4. The upper receiver assembly of claim 1 , further comprising a placement above the receiver extension on a forward face of said upper receiver.5. The upper receiver assembly of claim 4 , wherein said placement has a bore.6. The upper receiver assembly of claim 1 , wherein a forward face of said upper receiver includes an opening in communication with a channel that runs approximately parallel to the longitudinal axis of the upper receiver assembly.7. The upper receiver assembly of claim 6 , wherein said opening has a forward end and a rearward end claim 6 , said opening being wider at said forward end claim 6 , gradually tapering down in diameter along its length towards said rearward end.818-. (canceled) 1. Field of the InventionThe invention relates in general, to firearms and, more particularly, to firearm receivers which facilitate directly connecting both the barrel and the handguard directly to the receiver of the host ...

ADJUSTABLE GAS BLOCK FOR A GAS OPERATED FIREARM

An adjustable gas block for a gas operated firearm is provided that offers the user a means by which the volume of gas being directed to the host rifle's operating system can be adjusted. The adjustable gas block provides two positions of adjustment, with the position of use being selected based on whether or not a back pressure increasing device, such as a noise suppressor or a silencer, is mounted on the firearm. A first position provides the optimal volume of gas into the gas operating system for it to operate properly based on its factory configuration and in the absence of a back pressure increasing device. A second position is available for use when the back pressure is increased due to the presence of a back pressure increasing device. The second position exposes a port through which a portion of the volume of gas from the barrel is vented into a secondary chamber prior to being released into the atmosphere. By venting a portion of the gas into a secondary chamber, the amount of gas received by the operating system is reduced to a volume that is substantially equal to the volume of gas that would be received by the operating system in the absence of a back pressure increasing device. No tools are required to select either of the positions provided by the gas block. 1. An adjustable gas block comprising:a housing having a barrel receiving channel and a gas nozzle receiving channel;a gas nozzle having a bore and at least a first port and a second port, a front end of said gas nozzle being inserted into said gas nozzle receiving channel, and said first port adapted to be in operational communication with a gas port of a firearm barrel; andan adjustment knob having a central bore which receives the front end of said gas nozzle and is configured to be secured thereto, wherein said central bore has a gas channel formed therein, said gas channel being out of communication with said second port when said knob is in said first position and said gas channel being in ...

ADJUSTABLE GAS BLOCK FOR AN INDIRECT GAS OPERATED FIREARM

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas. 18-. (canceled)9. An adjustable gas block for a firearm , the adjustable gas block comprising:a gas block housing having a barrel receiving channel, and a cylindrical bore with a port in communication with the barrel receiving channel;a nozzle, wherein a part of the nozzle is received in the cylindrical bore, wherein the nozzle comprises a plurality of ports spaced about the part of the nozzle received in the cylindrical bore; anda rotatable knob coupled to the nozzle, wherein the rotatable knob retains the nozzle within the cylindrical bore of the gas block housing and controls rotational movement of the nozzle within the cylindrical bore of the gas block housing, and wherein manipulation of the rotatable knob with respect to the gas block housing rotates the nozzle within the cylindrical bore and selectively places a port of the plurality of ports of the nozzle in communication with the port of the cylindrical bore.10. The adjustable gas block of claim 9 , wherein the rotatable knob includes a series of notches claim 9 , and the gas block housing includes a spring loaded detent and ball claim 9 , and wherein the spring provides a force to the ball which works in conjunction with the series of notches on the rotatable knob to ...

Firearm receiver assembly

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another.

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

ADJUSTABLE GAS BLOCK FOR AN INDIRECT GAS OPERATED FIREARM

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas. 18.-. (canceled)9. An adjustable gas block comprising:a nozzle having a front end and a back end, wherein the nozzle comprises a plurality of ports spaced about the back end of the nozzle;a gas block housing having a barrel receiving channel, and a cylindrical bore with a port, wherein the cylindrical bore is connected to the back end of the nozzle; anda rotatable knob that receives and rotates the nozzle within the cylindrical bore, wherein said knob is configured to retain and rotate the nozzle within the cylindrical bore and said knob is removably retained by a spring loaded detent and ball and said spring and detent work in conjunction with a series of notches present on said knob to prevent the unintentional rotation of said knob and said spring provides a force to the ball which interacts with the notches.10. The adjustable gas block in wherein said nozzle has two ports located about the back end of the nozzle.11. The adjustable gas block in wherein said nozzle has three ports located about the back end of the nozzle.12. The adjustable gas block of claim 9 , wherein said port is aligned at an angle in relation to said cylindrical bore and said cylindrical bore is configured to transmit gas from an opening to said port ...

BOLT CARRIER AND BOLT FOR GAS OPERATED FIREARMS

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability. 1. A bolt for a firearm , the bolt comprising:a generally cylindrical body having a front end and a rear end and a body portion extending therebetween, near said front end there is a mating surface located within a recess, said mating surface has a gap therein to accommodate a portion of an extractor; andan extractor having a forward end, a back end and a body portion extending therebetween, said forward end having a portion configured to engage the rim of an ammunition cartridge, said forward end of said extractor comprises at least one spring, wherein the spring is configured to bias said extractor into position against said mating surface.2. The bolt of claim 23 , wherein said first bolt lug and said second bolt lug define a gap therebetween which is in communication with claim 23 , and wider than claim 23 , said extractor recess.3. The bolt of claim 1 , wherein said forward end of said extractor is wider than said body portion of the extractor.4. The bolt of claim 1 , wherein said forward end and said back end of said extractor is wider than said ...

BARREL NUT ASSEMBLY AND METHOD TO ATTACH A BARREL TO A FIREARM USING SUCH ASSEMBLY

A barrel nut assembly for use on a variety of firearms is provided. The assembly is made up of a barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place. The barrel nut assembly affords the user a method and apparatus that aligns a central bore in the bushing with the opening in the upper receiver that receives an operating system component of the firearm while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver. 19.-. (canceled)10. A method of securing a barrel having an annular flange proximate to a rear end of said barrel , to a firearm using a barrel nut , a locknut and a fixture which is configured to receive a receiver of the firearm and the barrel nut and restrain both from rotational movement , the receiver having an externally threaded front end part which is configured to be threadedly engaged within a rear end of the barrel nut , the barrel nut having an internally threaded central bore that receives a chamber end of the barrel and a bushing with a bore therethrough which aligns with an opening located on the front face of the firearm receiver , the bore in the bushing and the opening in the firearm being configured to receive a part of the firearm's operating system therein , the lock nut being configured to slide onto and down the barrel and having external threads to threadedly engage with internal threads on a front end of the barrel nut bore , the method ...

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein.

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

FIREARM BUFFER SYSTEM AND BUTTSTOCK ASSEMBLY

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein. 1. A bolt carrier assembly for a gas-operated firearm comprising a bolt carrier having a forward end and a rearward end as said bolt carrier is positioned in said gas-operated rifle , said rearward end defining an enclosed longitudinally extending opening , said enclosed longitudinally extending opening receiving at least a portion of a weighted buffer therein , said weighted buffer having a back end which is larger in diameter than said enclosed longitudinally extending opening.2. The bolt carrier assembly as set forth in claim 1 , wherein said weighted buffer has a front end which is larger in diameter than said enclosed longitudinally extending opening claim 1 , a body portion of said weighted buffer extends between said front end and said back end claim 1 , said body portion is configured to be housed within said enclosed longitudinally extending opening thereby facilitating limited longitudinal movement of said buffer therein.3. The bolt carrier assembly as set forth in claim 2 , wherein said weighted buffer has the general shape of a barbell claim 2 , the back end of said buffer is integrally attached to said body portion claim 2 , said front end has an opening configured to receive a portion of said body portion therein claim 2 , a means is provided to secure said front end to said body portion.4. The bolt carrier assembly ...

ADJUSTABLE GAS BLOCK FOR AN INDIRECT GAS OPERATED FIREARM

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas. 1. A firearm utilizing an adjustable gas block comprising:a receiver;a barrel connected to the receiver;a gas operating system;a piston having a front end, back end, and internal void with means to communicate with the barrel and gas operating system through a plurality of ports which are spaced about the back end;a gas block housing having a receiving channel with a portion of the barrel contained therein, a cylindrical bore which runs parallel to the axis of the barrel located above the receiving channel with a port in communication with the barrel, the cylindrical bore contains the back end of the piston therein;a rotatable knob is utilized which both receives and rotates the piston within the cylindrical bore, said knob has a means to retain and rotate the piston within the cylindrical bore.2. A firearm utilizing an adjustable gas block in wherein said piston has two ports located about the back end of the piston.3. A firearm utilizing an adjustable gas block in wherein said piston has three ports located about the back end of the piston.4. A firearm utilizing an adjustable gas block in wherein the rotatable knob provides four positions of adjustment and is removable retrained by a spring loaded detent.5. A firearm utilizing ...

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8 SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Adjustable gas block for a gas operated firearm

An adjustable gas block for a gas operated firearm is provided that offers the user a means by which the volume of gas being directed to the host rifle's operating system can be adjusted. The adjustable gas block provides two positions of adjustment, with the position of use being selected based on whether or not a back pressure increasing device, such as a noise suppressor or a silencer, is mounted on the firearm. A first position provides the optimal volume of gas into the gas operating system for it to operate properly based on its factory configuration and in the absence of a back pressure increasing device. A second position is available for use when the back pressure is increased due to the presence of a back pressure increasing device. The second position exposes a port through which a portion of the volume of gas from the barrel is vented into a secondary chamber prior to being released into the atmosphere. By venting a portion of the gas into a secondary chamber, the amount of gas received by the operating system is reduced to a volume that is substantially equal to the volume of gas that would be received by the operating system in the absence of a back pressure increasing device. No tools are required to select either of the positions provided by the gas block.

ADJUSTABLE GAS BLOCK FOR AN INDIRECT GAS OPERATED FIREARM

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas. 18.-. (canceled)9. An adjustable gas block for an indirect gas operated firearm , wherein the adjustable gas block comprises:a nozzle comprising a forward end, middle portion and back end, and wherein said nozzle comprises a plurality of ports spaced about a middle portion of the nozzle, and wherein each of said plurality of ports can be selectively placed into communication with a barrel gas port of said firearm;a gas block housing having a barrel receiving channel, and a cylindrical bore with a port, wherein said cylindrical bore receives said gas nozzle, and wherein said gas block housing comprises a groove formed therein to receive a rotatable knob, said groove running transverse to an axis of a barrel of said firearm and between a forward end of said cylindrical bore and a generally planar, rearwardly facing portion of said gas block housing; anda rotatable knob that receives and rotates the nozzle within said cylindrical bore, and said knob is removably retained by a spring loaded detent and ball, and said spring and detent work in conjunction with a series of notches present on said knob to prevent unintentional rotation of said knob, and said spring provides a force to said ball which interacts with said notches.10. The ...

FIREARM BUFFER SYSTEM AND BUTTSTOCK ASSEMBLY

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein. 1. A gas-operated firearm comprising:a receiver;a barrel coupled to said receiver;a bolt carrier configured to be received within said receiver having weighted buffer assembly secured thereto;a bolt;a return spring for resisting the rearward movement of said bolt carrier and for biasing said bolt carrier into battery;said bolt carrier including a front end where said bolt is rotatably mounted, a rear end defining an internal longitudinal opening where said weighted buffer is housed, and a body portion extending therebetween, said buffer having a front portion, a rear portion and a connecting member extending therebetween, said rear portion of said buffer extends past the rear end of said bolt carrier, said connecting member is received within said internal longitudinal opening of said bolt carrier;said rear end of said bolt carrier defines a boss thereon having an outer diameter that is in contact with an interior portion of said receiver, the area extending between the back side of said boss and the rear end of said bolt carrier is smaller in diameter that an interior opening of said return spring, a portion of which is received thereon.2. The gas-operated firearm of claim 1 , wherein said buffer has limited longitudinal movement in relationship to said bolt carrier.3. The gas operated firearm of claim 1 , further comprised of a ...

Rifle charging handle

An ambidextrously operated charging handle for use with the M16 family of firearms is provided. The charging handle provides a latch mechanism consisting of two extended handles which are in operational communication with each other. Either handle may be independently retracted to disengage the latch mechanism of the charging handle from the host firearms receiver. The spring-biased mechanism of the charging handle is sheltered within the interior of the charging handle thereby protecting it from the elements. Further, an improved axial pin has been provided to secure the handles of the latch mechanism to the grasping portion of the charging handle.

ADJUSTABLE GAS BLOCK FOR AN INDIRECT GAS OPERATED FIREARM

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas.

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

FIREARM BUFFER SYSTEM AND BUTTSTOCK ASSEMBLY

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein. 1. A bolt carrier assembly for a gas-operated firearm comprising a bolt carrier having a forward end and a rearward end as said bolt carrier is positioned in said gas-operated rifle , said rearward end defining an enclosed longitudinally extending opening , said enclosed longitudinally extending opening receiving at least a portion of a weighted buffer therein , said weighted buffer having a back end which is larger in diameter than said enclosed longitudinally extending opening.2. The bolt carrier assembly as set forth in claim 1 , wherein said weighted buffer has a front end which is larger in diameter than said enclosed longitudinally extending opening claim 1 , a body portion of said weighted buffer extends between said front end and said back end claim 1 , said body portion is configured to be housed within said enclosed longitudinally extending opening thereby facilitating limited longitudinal movement of said buffer therein.3. The bolt carrier assembly as set forth in claim 2 , wherein said weighted buffer has the general shape of a barbell claim 2 , the back end of said buffer is integrally attached to said body portion claim 2 , said front end has an opening configured to receive a portion of said body portion therein claim 2 , a means is provided to secure said front end to said body portion.4. The bolt carrier assembly ...

Firearm buffer system and buttstock assembly

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein.

Firearm buffer system and buttstock assembly

A buttstock assembly configured to work in conjunction with a compact buffer assembly consisting of a buffer tube, spring and bolt carrier with an integral buffer is provided. The buttstock assembly, buffer tube and bolt carrier are configured to work with AR15/M16 type firearms and their derivatives. By incorporating the buffer onto the bolt carrier, which is used in conjunction with a buffer tube of reduced length, the overall length of the host firearm is reduced by approximately 3.2 inches. No permanent modification need be made to the host firearm in order to utilize the compact buffer assembly and buttstock assembly disclosed herein.

Firearm buttstock assembly

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

A barrel nut assembly for use on a variety of firearms is provided. The assembly is made up of a barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place. The barrel nut assembly affords the user a method and apparatus that aligns a central bore in the bushing with the opening in the upper receiver that receives an operating system component of the firearm while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver.

Firing pin safety device for auto-loading firearms

The invention relates to a firing pin safety catch mechanism for a firearm, especially an auto-loading firearm which operates with a closed action such as found on the United States Military's M16 and its various derivatives. The safety catch mechanism consists of a firing pin which is housed within the bolt carrier assembly of the host firearm. Further, the firing pin is capable of being moved from a rest position at which its end is positioned in the travel path of a hammer, to a firing position; a firing pin spring is used to move the firing pin into its rest position; a catch, located on the carrier, which is operated by a spring capable of engaging and holding the firing pin in its rest position; and a cam surface about the exterior of the catch cooperating with the hammer and releasing the catch from engagement with the firing pin when the hammer has substantially completed its patch of travel. The purpose is to prevent the unintentional movement of the firing pin and thereby prevent the unintentional discharge of the host firearm.

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Adjustable gas block for an indirect gas operated firearm

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas.

Firearm with facility for open-bolt and closed-bolt operation

A firearm has a frame with a barrel connected to the frame and defining a barrel axis. The barrel has a rear end defining a chamber, and a bolt assembly reciprocates with respect to the chamber between a closed position adjacent the chamber, and an open position away from the chamber. A fire control assembly includes a trigger and a selector switch with a semi-automatic position and a fully-automatic position. The fire control assembly includes a bolt assembly sear operably engaging the bolt. The fire control assembly operates when the selector switch is in the semi-automatic position in response to pulling the trigger to discharge the firearm, to load a cartridge, and to position the bolt in the closed position. The fire control assembly operates when the selector switch is in the fully-automatic position in response to pulling the trigger to discharge the firearm, and to hold the bolt in the open position. The fire control may include a sub-frame connected to the frame and to the bolt assembly sear, and may include a safety sear that prevents firing out of battery when in either full-auto or semi-auto modes. The fire control system may include a facility that momentarily maintains the trigger in a firing position when it is released while the bolt is moving forward from the open position.

Firearm receiver assembly

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another.

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

A barrel nut assembly for use on a variety of firearms is provided. The assembly is made up of a barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place. The barrel nut assembly affords the user a method and apparatus that aligns a central bore in the bushing with the opening in the upper receiver that receives an operating system component of the firearm while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver.

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Firearm receiver assembly

An upper receiver assembly for a firearm having an upper receiver with an integral barrel nut, a handguard assembly and a barrel nut assembly with a barrel and lock nut is provided. The barrel is received by the upper receiver and is secured directly to the upper receiver using the lock nut. The upper receiver also includes an integral handguard mounting member to which the handguard assembly may be directly attached. The upper receiver assembly allows the user to attach both the barrel and handguard assemblies directly to the upper receiver, independently of one another.

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

A barrel nut assembly for use on a variety of firearms is provided. The assembly is made up of a barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place. The barrel nut assembly affords the user a method and apparatus that aligns a central bore in the bushing with the opening in the upper receiver that receives an operating system component of the firearm while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver.

Barrel nut assembly and method to attach a barrel to a firearm using such assembly

A fixture for use with AR15/M16 type firearms is provided herein. The fixture is made up of several parts that when used in conjunction with one another mitigate the transfer of torque from the barrel nut to the firearms receiver during barrel installation. The fixture affords the user a method and apparatus that holds the barrel in alignment with the firearm receiver and secures the barrel against rotational movement during installation of a barrel nut or similar device. The fixture may be configured to work with the legacy AR15/M16 type barrel nut, as well as other designs as disclosed herein.

Bolt carrier and bolt for gas operated firearms

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Adjustable gas block for an indirect gas operated firearm

A firearm including a barrel, receiver, indirect gas system and an adjustable gas block designed to interface with the indirect gas system is provided. Four indexable positions of adjustment are provided for on the adjustable gas block. Positions of adjustment are selected based on the use of a silencer, use of under-powered ammunition, the presence of un-burnt powder and debris in the host firearms operating system, or if the weapon is being fired under “ideal” circumstances. The provided gas block is designed to function with an indirect gas operating system. Excess gas from the operating system is not vented from the gas block thereby generating excess flash and sound. No tool is required to manipulate the adjustment mechanism of the gas.