Abstract: A rifle chassis is able to convert the M1A rifle to have a modular stock system. The chassis may be designed to permit attachment of a shotgun stock to the M1A chassis. For example, a particular model's modular stock system, such as a Mossberg® model 500 shotgun stock, may be attached to the chassis of the present invention to permit interchangeability of stocks on the rifle.

Abstract: Embodiments of the invention can include a hand guard assembly for securely attaching to a firearm. According to one embodiment, a hand guard assembly can be provided for a firearm having an upper receiver and a barrel. The hand guard assembly can include a barrel nut operable to mount the barrel to the upper receiver of the firearm. The hand guard assembly can also include a hand guard having a receiving channel about an interior portion of the hand guard. The receiving channel can be sized and shaped to receive the barrel nut such that the hand guard can be secured to the barrel nut by a securing mechanism when the hand guard is positioned about the barrel of the firearm.

Abstract: A forearm stock for a shotgun includes a forearm stock main body, an integral shot shell carrier tube, disposed in the main body, an accessory rail, at the forward end of the main body, and a removable cover, adapted to cover the accessory rail. The forearm stock main body has a forward end, a back end, a contour, and an upper cavity for receiving a shotgun's tube magazine. The shot shell carrier tube is disposed below the upper cavity, and is adapted to receive a plurality of shot shells, with an opening toward the back end. A mechanism for urging the shot shells out of the carrier tube through the opening is provided, and a retention mechanism is adapted to selectively retain the shot shells in the carrier tube. The removable cover has a contour that substantially complements a contour of the main body.

Abstract: A handguard system for connecting an accessory to a firearm has a tubular body having a bore size to closely receive the body of the barrel nut. The tubular body has a tapered wedge portion that defines a gap therein. There may be a tapered clamp element adapted to fit over the wedge. The clamp element may be operable to squeeze the gap as the clamp element is pushed onto the wedge. The squeezing of the gap is operable to clamp the tubular body to the body of the barrel nut. The tubular body and the body of the barrel nut may each include a mating feature that prevents longitudinal movement of the tubular body while the mating features are engaged. The tubular body and the upper receiver may each include a mating feature that prevents rotational movement of the tubular body while the mating features are engaged.

Abstract: Foldable and flippable adapter devices, apparatus, systems and methods of attaching accessories to firearm rails. Accessories can include fore grips, and lights. Adapters can include a slidable thumb switch for locking a swinging plate with side rails to a main plate, and spring loaded detents for locking the swinging plate in substantially vertical orientations. A folding rail adapter can be substituted for the existing rail system on firearms to allow the rail to be directly attached to the firearm. A flipping rail adapter can have a pivotal lever which supports a folding rail in an open position. Springably biased detent pins allow the lever to lock open. Pushing the lever back will overcome the springs so that the pins can pass out of the detents allowing the folding rail to move to a folded position.

Abstract: A handguard system for use with a firearm including a tubular body assembly having a rearward end and a forward end, a top handguard portion and a bottom handguard portion. The bottom handguard portion includes a forward tubular portion, a gap extending from the rearward end to the forward tubular portion, a first groove formed in an inner surface thereof and spaced forwardly from the rearward end for receiving tines of a barrel nut therein, and a second groove parallel to the first groove. A clamp assembly is carried by the bottom handguard portion for engaging the barrel nut and securing the bottom handguard portion to the receiver. The top handguard portion is receivable in the gap and including a forward end, a rearward end, and engagement elements for securing the forward end of the top handguard to the bottom handguard portion.

Abstract: A cap group of a container pipe of a rifle comprises a manually removable closure latch having a main body, an engagement element, a spring and a socket. The group further comprises a cam profile joined to the container pipe, having a housing seat for the stable and manually reversible reception of the engagement element.

Abstract: A semi-automatic or automatic rifle is provided. The rifle has a receiver having a receiver frame, a barrel removably connected to the receiver frame, and an end cap coupled to the barrel. A removable hand guard section is provided extending over and generally surrounding the barrel, the removable hand guard section removably connected to the receiver. The removable hand guard section has a locating feature adapted to engage with the end cap and locate the hand guard relative to the end cap. The removable hand guard section has a mounting rail portion and a body portion, the mounting rail portion molded into the body portion. The barrel has a locking collar adapted to removably position and lock the removable hand guard section relative to the receiver frame and the barrel. The removable hand guard floats in position relative to the barrel.

Abstract: A firearm includes a receiver and a barrel connected to the receiver. A hand guard extends from the receiver and defines a hand guard bore. The receiver includes a threaded end and the hand guard includes a flange extending into the hand guard bore and abutting the receiver about the threaded end. A hand guard nut abuts the flange of the hand guard and threadedly engaging the threaded end of the receiver. The hand guard nut sandwiches the flange between the hand guard nut and the receiver for attaching the hand guard to the receiver. The hand guard includes a first hand guard portion and a second hand guard portion removably attached to the first hand guard portion. The second hand guard portion is slid from an assembled position to a disassembled position to expose the hand guard nut in the hand guard bore.

Abstract: A sliding stock and interface system for a semi-automatic firearm. The sliding stock includes a handle in the form of a shoulder stock and integral pistol grip and finger rest. In use, the user grasps the handle with one hand and places an index finger of the same hand firmly on the finger rest. To fire a round of ammunition, the user pushes the receiver forward with their other hand so that the trigger collides with the stabilized finger. Recoil force separates the trigger from the user's finger on the finger rest. The user again pushes forward the receiver to repeat the firing cycle. A lock switch is moveable to selectively permit or restrict longitudinal movement between firearm and sliding stock. A shroud at least partially covers the switch.

Abstract: An insert grip is used in cooperation with a firearm handguard having a plurality of regularly spaced holes therethrough. The insert grip includes a plurality of tubular flexible inserts, each having a tubular body extending through one of the openings. An upper collar extends radially outwardly around the outer end of the body of each insert. The inserts are affixed together in a regular pattern designed to be coaxial engaged with the holes in the handguard.

Abstract: A gunstock system having an internal magazine for storage of ammunition cartridges and for providing ambidextrous delivery of the ammunition cartridges. The gunstock has a vertically-oriented internal magazine having an upper opening and a lower reload/discharge opening, an operable cover for closing the upper opening, a biasing element, such as a spring, extending from the cover within the internal magazine to apply downward pressure upon the ammunition cartridges, and biased-retaining arms for operatively opening and closing the reload/discharge opening to permit and restrict removal of the ammunition cartridges from the internal magazine. The ammunition cartridges exit the reload/discharge opening in a forward manner and along the bottom of the gunstock. The gunstock has a bore extending therethrough from a rearward to a forward end of the gunstock for receiving a bolt to secure the gunstock to the receiver or adjacent portion of the firearm.

Abstract: A firearm buttstock includes a buttstock body having first, second and third passages. A transfer member is received in the second passage and a retaining member is received in the third passage. A firearm is also disclosed that has a receiver extension. The firearm buttstock can be supported on the firearm such that the receiver extension is received within the first passage. A method of assembling a firearm buttstock assembly is also included.

Abstract: A firearm may have a plurality of power-consuming accessories that can be attached to the weapon. In order to reduce the weight of these power-consuming accessories, as well as the proliferation of their batteries, the Weapons Accessory Power Distribution System provides a common power source to power the power-consuming accessories attached to the weapon. One or more powered rails are provided on the handguard, which encircles the barrel of the weapon, to provide a point of mechanical and electrical interconnection for the power-consuming accessories to provide quick connect mounting and dismounting of the power-consuming accessory, absent the use of connectors with their tethering cables, which are susceptible to entanglement. The powered rail(s) are electrically interconnected with a power source, which typically is a battery mounted in the butt stock of the weapon.

Abstract: A modular hand guard assembly serves both as a hand guard system and as an integrated interface system for mounting various weapon accessories and attachments thereto. The modular hand guard assembly includes a removable forward rail section that can be removed from the forward portion of the hand guard to provide for the installation of additional weapon accessories such as lights, optics or lasers in highly a desirable forward location adjacent to the barrel of the weapon. The modular hand guard assembly further includes an integrated modular switching and control system for use in connection with the various powered accessories mounted thereto.

Abstract: A bump stock and interface system for a semi-automatic firearm. The interface system includes first and second bearing elements. A handle is provided with an integral finger rest. The bearing elements are configured to wholly disengage and re-engage from the handle via a straight linear disconnecting motion. In use, the user grasps the handle with one hand and places an index finger of the same hand firmly on the finger rest. When intending to fire a round of ammunition, the user pushes the receiver forward with their other hand so that the trigger collides with the finger. Recoil force quickly separates the trigger from the user's finger on the finger rest. The user again pushes forward the receiver to repeat the firing cycle. A lock can be selectively engaged to prevent longitudinal movement of the firearm relative to the handle, thereby returning the firearm to normal semi-automatic functionality.

Abstract: A rifle conversion platform assembly comprised of components to fit around an existing action such that attachment locations such as a hand guard, pistol grip, and butt stock attachment locations are provided to have conventional rifle components, which in one form may be components of a high caliber semiautomatic rifle such as an AR-15, attached thereto.

Abstract: A reciprocating stock and interface system for a semi-automatic firearm. The interface system includes first and second bearing elements. A handle is provided with an integral finger rest. The finger rest is concave to form a cradle for the user's trigger finger. In use, the user grasps the handle with one hand and places an index finger of the same hand firmly on the finger rest. When intending to fire a round of ammunition, the user pushes the receiver forward with their other hand so that the trigger collides with the stabilized finger. Recoil force quickly separates the trigger from the user's finger on the finger rest. The user again pushes forward the receiver to repeat the firing cycle. A lock can be selectively engaged to restrict longitudinal movement of the firearm relative to the handle, thereby returning the firearm to normal semi-automatic functionality.

Abstract: A grip is disclosed. The grip comprises a base portion; a grip portion pivotably connected to the base portion for arrangement in one of: a deployed orientation, a stowed orientation and an intermediate orientation, wherein the grip portion includes a first, inner body, and a second, outer body, wherein the second, outer body is movably- and telescopingly-connected to the first, inner body; and a locking assembly arranged within and at least partially contained by the grip portion, wherein a portion of the locking assembly is selectively-extendable in one of an orientation within the grip portion and beyond an outer surface of the grip portion for selective coupling of the portion of the locking assembly with the base portion. A method for operating a grip is also disclosed. An assembly is also disclosed.

Abstract: A firearm stock having an internal cavity, a buttplate assembly and an engaging lever. The buttplate assembly has a base member including a locking leg. The locking leg includes a locking notch and the base member includes an attachment leg. The attachment leg includes an attachment aperture. The buttplate assembly is pivotally coupled, via an attachment pin, to a rear portion of the stock. The engaging lever is positioned through an aperture in an upper portion of the stock and comprises a body extending from a head to a locking tab. The body also includes a release notch in a central portion. The body is positioned within the locking notch when the buttplate assembly is in a closed position and the body is removed from the locking notch when the engaging lever is rotated into a release position.

Abstract: A buffer for a firearm having a sleeve member having an open end and a closed end. A mass is contained within the sleeve member. This mass is chosen to meet the demands of the particular firearm. A bumper secures and seals the open end of said sleeve. A spring within the sleeve maintains the mass at a predetermined location when the buffer is in an at-rest position.

Abstract: A bipod attachment mechanism for small arms that is releasably attached to an elongated rail adaptor is disclosed. The attachment mechanism removably mounts an accessory to a small arms weapon. The bipod attachment mechanism includes a rail attachment mechanism and a grip element having an upper end and a lower end, and including a hollow interior cavity. A pin-receiving section includes an aperture for receiving an accessory mounting pin, and a spring-biased catch mechanism for securing the accessory mounting pin.

Abstract: A recoil-reducing stock assembly for an autoloading shotgun or rifle that includes a receiver with a rear face and a spring tube extending rearwardly from the receiver rear face is described. The assembly includes a pistol grip against the receiver rear face having a spring tube bore; a stock having a spring tube recess and a connector tube cavity; a connector tube with a bore attachable at selected positions to the stock within the connector tube cavity; a tubular conduit slidably inserted over the spring tube and slidable and non-rotatable within the connector tube bore, the tubular conduit having a front end non-rotatably attached to the pistol grip; and a compressible spring inserted over the front tubular conduit and between the connector tube and the pistol grip to buffer recoil.

Abstract: A system is provided for simultaneously carrying two firearms is provided wherein said system has a first firearm; a receiving bracket attached to said first firearm; a second firearm having a trigger; a holster housing said second firearm, said holster having a mounting bracket acting in concert with said receiving bracket such that said mounting bracket is releasably attached to said receiving bracket, and wherein said holster restricts access to said trigger of said second firearm housed within said holster.

Abstract: A firearm includes a receiver with a socket defined by a forwardly extending circumferential rim having an inner surface, a barrel extending from the socket of the receiver and terminating in a muzzle, and a cocking lever housing carried above the barrel. A partial tubular body is received over the barrel with a rearward end abutting the receiver at the forwardly extending circumferential rim. A clamp element is carried by the partial tubular body and is movable between a release position and an engaged position in which a clamp end of the clamp element frictionally engages the inner surface of the circumferential rim.

Abstract: The present invention is a support rod that extends from the rear grip of a firearm with portable convenience features of quick, course adjustment, and slow, fine adjustment of the firearm without the shooter removing his hands from their normal firing position during aiming. The support rod is extended, retracted and adjusted by a button, spring, and a knob in the rear grip of the firearm.

Abstract: A hand guard rail system is fastened to a firearm having a barrel and a barrel nut, with the hand guard rail aligned to the top rail of the firearm. The hand guard rail system includes a hand guard and a sleeve fitted into the hand guard. The sleeve and the hand guard are fastened to the barrel nut, thereby aligning the hand guard to the firearm.

Abstract: A bump stock and interface system for a semi-automatic firearm. In use, the user grasps a handle with one hand and places an index finger of the same hand firmly on a finger rest. When intending to fire a round of ammunition, the user pushes the firearm receiver forward with another hand so that the trigger collides with the immobilized finger on the finger rest. Recoil force separates the trigger from the user's finger on the finger rest. The user again pushes forward the receiver to repeat the firing cycle. A lock is selectively activated to arrest longitudinal movement of the firearm relative to the handle, thereby returning the firearm to normal semi-automatic functionality. The lock includes a retractable pin having a tip that rides in a track having a rear stop to limit over-travel of the handle.

Abstract: A bump stock and interface system for a semi-automatic firearm. The interface system includes first and second bearing elements. A handle is provided with an integral finger rest. The finger rest is concave to form a cradle for the user's trigger finger. In use, the user grasps the handle with one hand and places an index finger of the same hand firmly on the finger rest. When intending to fire a round of ammunition, the user pushes the receiver forward with their other hand so that the trigger collides with the stabilized finger. Recoil force quickly separates the trigger from the user's finger on the finger rest. The user again pushes forward the receiver to repeat the firing cycle. A lock can be selectively engaged to restrict longitudinal movement of the firearm relative to the handle, thereby returning the firearm to normal semi-automatic functionality.

Abstract: A kit, system and method for modifying an AK-variant firearm to permit bolt carrier pull back by the right or left hand. The kit, system and method includes a receiver cover including an arch-shaped crown and a pair of opposing retaining fins affixed to the bottom of the crown. One retaining fin has a slot that extends along the length of its upper portion. A guide track is affixed to the retaining fin having the slot. A charging handle assembly is secured to the guide track and is slidably engaged with retaining flanges and adapted to move along the guide track. An auxiliary charging handle is affixed to, and projects from, the slide. An engagement pin affixed to the slide projects inwardly to extend through the slot to engage the bolt carrier and move it when the charging handle is pulled.

Abstract: Embodiments of the invention can include systems and methods for installing a hand guard on a firearm. In embodiments, a method of installing a hand guard on a firearm can be provided. The firearm includes a barrel, a barrel nut, and a delta ring. The delta ring is retracted away from the barrel nut. A number of hand guard members are positioned about the barrel. An annular groove associated with each hand guard member is mated with a portion of a flange of the barrel nut. The flange is secured within the annular groove of at least one hand guard member. The delta ring is advanced over a portion of some or all the hand guard members.

Abstract: A firearm assembly for a firearm can include a monolithic rail platform with a handguard portion and an upper receiver portion. The barrel of the firearm can be positioned through the handguard portion and secured with the upper receiver portion. A firearm assembly can also include a bolt assembly with a bolt carrier having minimized land area and a forward end sized for receipt in the barrel extension at the rearward end of the barrel.

Abstract: A removable, non-permanent trigger extension that does not require gunsmithing and is operable with a firearm to provide a contact surface adapted to be manipulated by a user to actuate a trigger assembly of the firearm, wherein the contact surface is disposed a location spaced from a location of the trigger and a rifle stock operable with the trigger extension and the firearm.

Abstract: A clamping mechanism for attaching a handguard to a firearm includes a barrel nut having radially outwardly directed tines, a tubular body having a plurality of longitudinal grooves separated by lands forming an inner surface of the tubular body, and a pair of circumferentially extending grooves traversing the lands, formed forward from a rearward end of the tubular body. A clamp element is carried by the tubular body and includes a body with a beveled end and a heel extending substantially perpendicularly from an opposing end of the body. The clamp element is adjustably positioned within the tubular body with the heel extending radially outwardly and received in the second groove and the beveled end engages the barrel nut.

Abstract: A modular fore-end rail assembly for mounting onto a firearm includes a hand guard and a bushing element that combines with an end portion of the hand guard to encircle the standard barrel nut, thereby supporting the entire assembly without requiring modification to the standard barrel nut. The thermal transfer characteristics of the material from which the bushing element is manufactured may be selected to either increase or decrease the rate at which heat is transferred from the barrel nut to the hand guard allowing for rapid changes of bushing elements and, therefore, rapid and selective changes in the heating rate of the hand guard.

Abstract: A hand guard for a firearm, the firearm being of a type comprising a barrel with a proximal hand guard retainer at a proximal end and a hand guard cap at a distal end. The hand guard cap comprises an end wall having an orifice configured to axially receive the barrel, and a proximally extending flange defining a select shape surrounding the orifice. The hand guard comprises at least first and second body pieces configured to mate lengthwise about a barrel of a firearm between a proximal hand guard retainer and a hand guard cap to form the hand guard. The body pieces cooperatively form a proximal hand guard retainer interface at a proximal end of the hand guard a hand guard cap interface at a distal end. The hand guard cap interface is configured to engage a first select shape defined by a proximally extending flange of a first hand guard cap and a second select shape defined by a proximally extending flange of a second hand guard cap.

Abstract: A gun stock for a shoulder mounted firearm has a rear face with an upper portion extending downward from the heel of the stock at a first angle from about 0° to 10°, and a lower portion extending downward from the upper portion to the toe of the stock and forming a second angle greater than the first angle, preferably about 35° from vertical. The rear face may be part of a butt plate arranged as a door to cover a storage compartment in the stock, attached to the stock with a hinge at the toe and a latch at the heel. This configuration reduces the likelihood that the toe of the stock will catch on the shooter's armor or uniform, and places the hinge forward of the toe such that the butt plate may swing under the stock and out of the way when the storage compartment is opened.

Abstract: A accessory mounting system for a butt stock having a body, a tube cylinder integrally formed with a top end of the body, and a butt plate mounted to a rear end of the body, including a support structure on the body and a bracket having a pair of flanges arranged to be received by the support structure and a pair of mounting tabs arranged to receive an accessory such as a handheld electronic device.

Abstract: A system and method for adapting a vertical fore grip to a user. In one embodiment, a system for adapting a vertical fore grip to a user can be provided. The system can include a vertical fore grip configured to adjustably attach to a firearm; a grip extension configured to modify the vertical fore grip, wherein the grip extension is further configured to mount at least one accessory; and a bolt assembly for adjustably attaching the grip extension to the vertical fore grip.

Abstract: A buttstock shoulder stabilizer includes a locator ball having a radially-projecting threaded cylindrical stud that screws into the sling mount of the buttstock endplate of assault rifles, and a socket assembly that mounts on a soldiers flak jacket near his shoulder. The ball can be machined from a structural metal or made of thermoplastic injection molded about the cylindrical stud. The socket assembly has an oblong horizontally-disposed socket connected to a lower approach ramp. A wall surrounds upper and side portions of the socket and the side edges of the approach ramp. When the soldier brings his weapon to firing position, the ball slides up the access ramp an into the oblong socket. The socket assembly is preferably injection molded from a tough structural thermoplastic resin. The socket assembly is provided with slots which enable it to be strapped to a soldiers flak jacket near his shoulder.

Abstract: A mounting arrangement for use with a shotgun or rifle to selectively position accessories along the barrel of the rifle. The mounting arrangement includes a forend and a series of mounting rails that receive the desired accessories. The forend includes a series of locator rails equally positioned around the outer circumference and spaced from each other at approximately 45°. The spacing of the locator rails allows a user to selectively attach an accessory in a larger number of desired locations around the outer circumference of the forend. Each of the mounting rails and locator rails engage each other in a dovetail configuration to prevent the radial separation of the mounting rail from the locator rail.

Abstract: An ammunition magazine and gun/magazine system in which the magazine comprises an outer housing having a substantially cylindrical inner wall surface. An inner support member is mounted within the housing and has a substantially cylindrical outer wall surface which is concentric and opposing said inner wall surface of said housing. The outer wall surface and the inner wall surface form a gap between them. A helical ramp is disposed within the gap and has a concentric axis to the inner wall surface and said outer wall surface. The helical ramp forms a helical gap within the gap, which is configured to receive a plurality of cartridges such that a longitudinal axis of each cartridge is oriented radially of the inner wall surface within the helical gap. The magazine also includes a drive mechanism for advancing the cartridges along the helical ramp.

Abstract: A rifle conversion platform assembly comprised of components to fit around an existing action such that attachment locations such as a hand guard, pistol grip, and butt stock attachment locations are provided to have conventional rifle components, which in one form may be components of a high caliber semiautomatic rifle such as an AR-15, attached thereto.

Abstract: A firearm assembly including a first weapon having a first receiver is disclosed. The first receiver includes a front end with a barrel attached to the front end and a front sight attached to the barrel. A second weapon is selectively mounted to the first weapon and movable between an engaged and disengaged position. The second weapon includes a second receiver and a mounting system having a first portion attached to the second receiver and a second portion coupled to the second receiver. The first portion is coupled to the front sight to define a first attachment point when the second weapon is in the engaged position. The second portion includes a first end coupled to the front sight to define a second attachment point and a second end coupled to the first receiver to define a third attachment point when the second weapon is in the engaged position.

Abstract: A modular hand guard assembly serves both as a hand guard system and as an integrated interface system for mounting various weapon accessories and attachments thereto. The modular hand guard assembly includes a removable forward rail section that can be removed from the forward portion of the hand guard to provide for the installation of additional weapon accessories such as lights, optics or lasers in highly a desirable forward location adjacent to the barrel of the weapon. The modular hand guard assembly further includes a removable lower hand guard to provide access to the barrel of the firearm and an integrated modular switching and control system for use in connection with the various powered accessories mounted thereto.

Abstract: A light weight stiffened gun stock is disclosed herein. The gun stock utilizes structural members oriented in a grid pattern resulting in a high strength-to-weight ratio. The grid pattern can be an isogrid, orthogrid, hoop-grid pattern, or a combination thereof. The structural members define the form of the gunstock, and provide recoil absorption to reduce the amount of recoil experienced by the shooter.

Abstract: A compact and foldable survival tool includes a firearm including a trigger and safety lever with many unique features including a compact and folding survival tool with an easy-to-manufacture top strap, a rack and pinion hammer actuator, dual lasers for distress signaling and target and ranging sighting, reconfigurable multiple tools, contained child-safety lock system, folding trigger with safety lever, cam hammer lock, floating firing pin, and cylinder pin assembly positive cylinder lock, for example.

Abstract: Provided herein are a gun stock having a memento cylinder for receipt of a reminder of a deceased person or pet and a method of memorializing a deceased person or pet within a gun stock. The reminder may be the cremated remains of the deceased loved one or may be an article belonging to the deceased. The memento cylinder includes an end cap, which may include a glass viewing port through which the contents may be seen. The gun stock also includes a mechanism for limiting movement of the memento cylinder within the gun stock. The cylinder may be engraved with the name or initials, birth and death dates or years, a likeness of the deceased, or other information about, or messages honoring, the deceased. The gun stock permits a hunter to memorialize the deceased by hunting with, or displaying, a gun outfitted with the memento cylinder.

Abstract: M-16/AR-15 firearms modified with a new gas operating system are described. The modification of the firearm with the new gas operating system has a forward mounted gas and recoil spring system in which high pressure propellant gases from the cartridge expand in the barrel and operate the firearm.

Abstract: A gun-resembling weapon is defined, in a longitudinal direction thereof, by a first end portion and a second end portion. A first butt extends from the first end portion towards the second end portion. The weapon is further provided with a second butt extending from the second end portion towards the first end portion.