Abstract: A stock and recoil system for a firearm includes a lower receiver, a bolt carrier, and a stock assembly. The bolt carrier is reciprocally movable along an axis within an upper receiver carried by the lower receiver and includes a tubular rearward end defining a cavity with a rearwardly directed opening. The stock assembly is coupled the lower receiver and includes a receiver extension coupled to the lower receiver and aligned on the axis. An action spring is carried within the receiver extension and extends therefrom into the tubular rearward end of the bolt carrier. The action spring is movable between a compressed configuration and an expanded configuration during the firing cycle of the firearm. A butt plate is adjustably coupled to the receiver extension and is movable between an extended position and a collapsed position.

Abstract: A modular buttstock system for firearms includes user replaceable and interchangeable buttstock modules. The modules include a comb portion and butt portion which ma be provided in a variety of configurations, sizes, and materials. The modules and firearm buttstock each include complementary configured mourning portions and a mounting system designed to provide interchangeable and removable attachment of the modules to the buttstock. In some non-limiting embodiments, the buttstock and modules may be formed of synthetic materials.

Abstract: A tactical support device comprising a universal butt stock clip and plate member is provided for securing and maneuvering a rifle or long gun. The clip member is attached along the rear portion of a long gun and includes an elongated rod having a rounded end termination. The rounded end is dimensioned to fit within a corresponding slot along the plate member, which is attached to the desired stowage area on the operator. The elongated rod provides an offset between the weapon and user such that there is room enough to support the weapon and perform desired activities while operating in a tactical environment. The elongated rod is supported from different clip embodiments, and alternatively is hingedly attached thereto or attached directly to the butt stock of a long rifle for use with the plate member disposed on the operator's person.

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 detachable handguard for firearms having a receiver defining a handguard mounting flange. Clamp members have hook-like ends that engage the handguard mounting flange and are attached to clamp actuating levers that are pivotally mounted to the handguard. The clamp members are positioned in clamping engagement with the mounting flange and are pivoted to clamping positions to force the handguard into tight assembly with the receiver and to move the connection of the clamp members with the actuating levers over-center, thus causing the clamp actuating levers to remain at their clamping positions. Lock members secure the clamp actuating levers at their clamping positions.

Abstract: A rifle assembly includes a central chassis for carrying an action including a trigger and a trigger guard, the central chassis having a front portion and a rear portion, a rifle fore-end for carrying a barrel, the fore-end having a rear portion, and a fore-end adapter having a rear portion removably secured to the central chassis front portion and a front portion removably secured to the fore-end rear portion. The rifle assembly further includes a rifle butt stock having a front portion and a butt stock adapter having a rear portion removably secured to the butt stock front portion and a front portion removably secured to the central chassis front portion.

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: An extendable butt stock includes a housing having a forward end, an open rearward end, an opening at the forward end and a buffer tube of a firearm received therethrough. A hinge plate pivotally attaches a butt plate to the rearward end of the housing, movable between an open position and a closed position. A spine reinforcing member having a rearward end and a forward end extends from the rearward end of the housing to proximate the forward end of the housing and cradles the buffer tube. The butt plate contacts the rearward end of the spine reinforcing member when the butt plate is in the closed position. An engagement mechanism is carried by the housing and releasably attaches the buffer tube to the spine reinforcing member.

Abstract: A firearm with keyhole-shaped rail mounting points has a forend element having an exterior surface and interior surface. The forend element defines a plurality of rail mounting apertures extending from the interior surface to the exterior surface. Each of the apertures has a first portion with a first diameter to closely receive a fastener head of a first diameter. Each of the apertures has a second portion with a second width less than the first diameter size to receive a shank portion of a fastener. There may be a recess on the interior surface size to receive the fastener head, the recess positioned at the second portion.

Abstract: A handgun curved to correspond more closely with the contours of a person's body, achieving a comfortable fit when the handgun is worn for any appreciable amount of time on the person's body. The handgun housing is inclusive of a top portion, an intermediate portion, and a grip portion, which may be separately connected or integrally formed parts sharing a radius of curvature to form asymmetric left and right sides, particularly a concave side and a convex side. This asymmetry extends beyond the grip portion and includes at least a portion of the trigger guard and a portion of the magazine securing clip.

Abstract: The tactical precision grip includes an elongate body having an upper mounting portion for mounting the grip to existing mounting hardware on a firearm. At least the sides and back of the body include anti-skid surfaces to prevent slip on the hold during operation. An upper depression is formed on the back of the body for placing a user's thumb, and the front of the body includes an elongate, vertical fingertip groove for placing the user's fingertips during shooting. The depression and the fingertip groove encourage user placement of the respective thumb and fingertips to minimize contact with the firearm grip, thereby enhancing trigger control and shooting accuracy.

Abstract: A handguard or other cover for a firearm includes a shell or body with a hollow interior cavity and a retaining structure configured to engage the forearm and retain the shell in place on the forearm, where the retaining structure is releasable to permit removal of the shell from the forearm. The shell may have a concave inner surface and a convex outer surface extending between the first and second edges. The concave inner surface may include at least one tab extending outwardly from the inner surface which is configured to be connected to a slot or opening formed in the forearm for the firearm.

Abstract: A rifle is provided. The rifle comprises a barrel, a handguard partly axially surrounding the barrel, and a modular accessory system. The modular accessory system comprises a housing and a modular accessory support system positioned within the housing, wherein the support system includes at least two modular accessory slots. The modular accessory system also comprises a modular accessory removably secured and individually adjustable within each slot. The housing partly axially surrounds the barrel and is positioned axially adjacent to the handguard such that a combination of the handguard and the housing surrounds the barrel completely in an axial manner. Support system configurations of preferably either tray-type or platform-type may be contemplated. The modular accessory system may further comprise a common power source and a display system. A modular accessory system for rifles capable of exchangeably mounting accessories thereto in plug-and-play fashion is therefore achieved.

Abstract: A hand guard assembly for attachment to a firearm includes an anchor member and a sleeve. The anchor member is coupled to the firearm and defines an inner bore through which a barrel of the firearm extends when the anchor member is coupled to the firearm. The sleeve surrounds a portion of the barrel of the firearm in an overlying relationship. The sleeve is coupled to the anchor member at a first end so that when the assembly is attached to the firearm, the sleeve is cantilevered from the anchor member with an inner surface of the sleeve and an outer surface of the barrel being radially spaced apart from one another.

Abstract: The present invention provides a sporterized firearms stock ensemble configured to be coupled to a long firearm having a pistol grip interface. The firearm stock ensemble includes a cheek-rest and a gunstock assembly. The cheek-rest is configured to be coupled to a recoil buffer tube of the long firearm. The gunstock assembly includes an inline grip portion, a butt-plate and an elongated support section configured to couple the grip portion to the butt-plate.

Abstract: An angled pistol grip for a user's trigger hand , mounted on an automatic or semiautomatic rifle. Said pistol grip oriented asymmetrically from the centerline of the rifle body thereby reducing the stress on the shooter's wrist of the trigger hand said pistol grip while firing. Thus allowing the shooter to correctly position the weapon, relative to the shooter's body, for accurate aiming.

Abstract: The present disclosure provides an ergonomic handguard that supports rail mounted weapon accessories in a variety of different orientations. The handguard includes sides and bottom surfaces that are ergonomic. The stem includes modular sections of picatinny rail that can be attached to various locations on the handguard as needed to provide a mounting structure for rail based weapon accessories.

Abstract: Example cartridge magazines for use within a curved handle of certain pistols have a laterally curved housing so that the pistols and magazines can fit comfortably along a user's body. Such curved pistols and magazines are particularly suited for carrying within a shirt or pants pocket. A curved pistol loaded with a curved magazine, for instance, can be carried comfortably in one pocket while an extra loaded magazine can be carried in another pocket. Example magazines carry single and multiple rows of cartridges along appropriately sized curved housings. The magazine's curvature provides a user with a prominent tactile feature that quickly indicates in which direction the magazine should be inserted within the pistol.

Abstract: A hand guard attachment assembly for a firearm having a barrel and a receiver fastened to the barrel by a barrel nut. The hand guard attachment assembly includes a forearm having a monolithic mounting rail/hand guard that is removably connected to the receiver. The monolithic rail/hand guard interfaces with an integral multi-slot mounting portion of the receiver. A cinch block is mated to the slots of the receiver and held in place by the monolithic rail/hand guard. A tension block is mated at one end of the monolithic rail/hand guard and is attached to the cinch block by a fastener to securely hold the monolithic rail/hand guard in place.

Abstract: An aftermarket handguard system is described for use with an assault rifle, such as an AR-15. The system includes an elongated arcuate upper handguard section substantially defining a longitudinal axis and a plurality of radial planes normal thereto. The handguard section has left and right generally outward directed rail flanges having non-parallel flange mating surfaces. Two lower arcuate handguard sections are provided also each having laterally extending rail flanges with non-parallel flange mating surfaces. Three “T” shaped accessory rails each having a dovetail shaped portion are provided for mating to the non-parallel flange mating surfaces. Accessories may be mounted on the accessory rails in the conventional manner.

Abstract: The present disclosure provides an ergonomic handguard that supports rail mounted weapon accessories in a variety of different orientations. The handguard includes sides and bottom surfaces that are ergonomic. The stem includes modular sections of picatinny rail that can be attached to various locations on the handguard as needed to provide a mounting structure for rail based weapon accessories.

Abstract: Example handguns, such as pistols and revolvers, have specifically curved or contoured shapes that make them particularly suited for fitting comfortably within front, rear or side pants pockets. In some examples, the handguns can be completely concealed within standard pants pockets.

Abstract: The tactical precision grip includes an elongate body having an upper mounting portion for mounting the grip to existing mounting hardware on a firearm. At least the sides and back of the body include anti-skid surfaces to prevent slip on the hold during operation. An upper depression is formed on the back of the body for placing a user's thumb, and the front of the body includes an elongate, vertical fingertip groove for placing the user's fingertips during shooting. The depression and the fingertip groove encourage user placement of the respective thumb and fingertips to minimize contact with the firearm grip, thereby enhancing trigger control and shooting accuracy.

Abstract: A method and system for an inductively powering rail on a firearm to power accessories such as: telescopic sights, tactical sights, laser sighting modules, and night vision scopes. This is achieved by having primary and secondary electromagnets (U-Cores) on both the inductively powering rail and the accessory. Once the electromagnets are in contact, the accessory is able to obtain power through induction via the inductively powering rail. Accessories may be attached to various fixture points on the inductively powering rail and are detected by the firearm when attached and detached. When attached, power and data communications may flow between the accessory and a master CPU located on the firearm. Accessories that are attached to the inductively powering rail and have rechargeable power systems may be recharged via the inductive power rail. Further, accessories that have power that is not needed may be transferred to other accessories.

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 firearm has an off-trigger locator and/or guide path. The off-trigger locator may be a depression or a convexity formed on a side of a frame of the firearm adjacent a trigger of the firearm, and may further include a raised portion. The off-trigger locator is configured to allow a user of the firearm to move between the off-trigger locator and the trigger, as necessary, for instance, as the user goes between non-firing and firing conditions. The guide position may comprise a groove or raised ridge formed on a frame of the firearm adjacent a trigger of the firearm and extending from the frame of the firearm into a trigger area adjacent the trigger. The guide path is configured to allow the user to move along the guide path away from and into the trigger area, as necessary, for instance, as the user goes between non-firing and firing conditions.

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 quick-detach barrel mounting system for removing and attaching a barrel to a receiver of a firearm. The quick-detach barrel mounting system can include a barrel nut having a body defining an axial bore. A proximal end of the barrel is received at least partially through the axial bore, and the barrel nut releasably engages a front end of the receiver. A hand guard can be mounted to the receiver and can define a cutout proximate the receiver. The hand guard at least partially encloses at least a portion of the barrel and the barrel nut, and the cutout is at least partially aligned with the barrel nut. At least a portion of the barrel nut is accessible via the cutout of the hand guard for at least partially disengaging and engaging the barrel nut with the receiver when the hand guard is mounted on the receiver.

Abstract: A firearm butt stock includes a portable GPS unit having a display on a surface, and control buttons on adjacent surface/surfaces, and a butt stock including a cavity defined by sidewalls formed in one side thereof intermediate a rearward end and a forward end. The cavity receives the portable GPS unit therein with the display facing outwardly. Attachment apparatus removably secures the portable GPS unit within the cavity.

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: An off-trigger locator for firearm comprises an elongated member adapted to mounted to a frame of the firearm adjacent a trigger of the firearm. The member is configured to allow a user of the firearm to sense the member with a trigger finger of the user and to move the trigger finger between the member and the trigger without significant movement of a hand of the user. The member comprises longitudinally opposite first and second ends with longitudinal sides extending between the longitudinally opposite ends. A locator surface is arranged between the longitudinal sides. The longitudinal side adjacent the trigger of the firearm forms a shoulder. The other longitudinal side is spaced from the shoulder by the locator surface. The width of the member at the shoulder is greater than the width of the member at the other longitudinal side. A method of mounting the off-trigger locator is provided.

Abstract: A hand guard attachment system for releasably attaching a hand guard to a firearm is disclosed herein. The system includes the hand guard having a proximal end configured to engage a forward end of a receiver of the firearm. The system further includes a tensioning assembly configured to interface between the hand guard and the forward end of the firearm. The tensioning assembly is further configured to selectively maintain an engaged position between the hand guard and the firearm such that the hand guard is releasably attached to the firearm without interfering with, or requiring removal of, the barrel and/or barrel nut connected to the receiver.

Abstract: A handguard encompasses the barrel of a replica firearm and supports one or more accessory rails. The handguard and the barrel have respective axes, which are offset from one another. The offset provides a pleasing aesthetic and a lower profile to accommodate sights without unduly obscuring the view of the shooter.

Abstract: A heatshield assembly for a metal barrel of a firearm includes a heatshield body provided with a rear end extending to a front end, and configured to overlie the barrel of the firearm. An insulating mounting arrangement is frictionally attached to and located within the heatshield body. The mounting arrangement is separate from the heatshield body for mounting the heatshield body to the barrel of a firearm in a continuous spaced relationship therefrom without damaging the barrel. With the heatshield body constructed of a metal material, the mounting arrangement is particularly constructed to prevent metal-to-metal contact between the heatshield body and the barrel.

Abstract: A firearm with keyhole-shaped rail mounting points has a forend element having an exterior surface and interior surface. The forend element defines a plurality of rail mounting apertures extending from the interior surface to the exterior surface. Each of the apertures has a first portion with a first diameter to closely receive a fastener head of a first diameter. Each of the apertures has a second portion with a second width less than the first diameter size to receive a shank portion of a fastener. There may be a recess on the interior surface size to receive the fastener head, the recess positioned at the second portion.

Abstract: A stock bedding system for a firearm is disclosed. In one embodiment, the stock bedding system includes a stock having a pair of bearing surfaces that are configured and arranged to mutually engage a mating pair of bearing surfaces formed on the barrel-receiver assembly. At least one of the four bearing surfaces has a predetermined convex surface profile which causes the barrel-receiver assembly to roll in an angular direction away from one lateral side of the stock towards the opposite lateral side when the barrel-receiver assembly is mourned to the stock. The convex surface profile acts to tighten the engagement between the opposing bearing surfaces of the barrel-receiver assembly and stock providing a secure and vibration resistant mounting. In one embodiment, the convex-shaped bearing surface is defined by a pillar lug mounted in the stock which engages a mating substantially fiat bearing surface formed on the barrel-receiver assembly.

Abstract: A firearm handguard assembly attachable to a receiver of a barrel of a firearm is disclosed. The firearm handguard assembly includes a barrel nut member, a locking sleeve member, a firearm handguard member and a plurality of fasteners. The locking sleeve member is disposed within an axial passage formed by the barrel nut member. A plurality of radial passages of the locking sleeve member are aligned with a plurality of radial passages of the barrel nut member. The firearm handguard member is arranged about the barrel nut member and the locking sleeve member such that the barrel nut member and the locking sleeve member are arranged within an axial passage of the firearm handguard member. The plurality of fasteners join the firearm handguard member to the barrel nut member and the locking sleeve member.

Abstract: A handguard or other cover for a firearm includes a shell or body with a hollow interior cavity and a retaining structure configured to engage the forearm and retain the shell in place on the forearm, where the retaining structure is releasable to permit removal of the shell from the forearm. The shell extends between first and second edges around an angular range greater than 180° and less than 360° to define the shell in a semi-tubular shape or a C-shape. The shell may have a concave inner surface and a convex outer surface extending between the first and second edges. The first edge is spaced from the second edge to define a gap providing access to the interior cavity, and the shell is configured to be connected to a forearm for the firearm by inserting the forearm within the interior cavity.

Abstract: A slide-action stock for a semi-automatic firearm. The side-action stock includes a handle provided with an integral finger rest. The finger rest forms a cradle for the user's trigger finger. In use, the user grasps the handle with one hand while pressing the dorsal side of their index finger firmly against the cradle. 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 index finger. Recoil force quickly separates the trigger from the user's finger against the cradle. The user pushes the receiver forward to repeat the firing cycle. A firing mode selector can be selectively engaged to restrict longitudinal movement of the trigger relative to the handle, thereby returning the firearm to normal semi-automatic functionality.

Abstract: A quick release, free floating, multi-piece forward hand guard assembly for a rifle includes an inner barrel nut adapted to be affixed to a front of the rifle receiver and an outer barrel nut telescopically received over the inner barrel nut and longitudinally secured thereto. The outer barrel nut is non-rotatable with respect to the inner barrel nut. A first hand guard element is engaged with and extends forwardly from the outer barrel nut in a laterally stable cantilevered fashion, and a second hand guard element is matingly engaged with the first hand guard element for surrounding the rifle's barrel and is free floating therefrom. The second hand guard element is attached to the first hand guard element with at least one quick release fastener.

Abstract: A hand guard cover for a small arms weapon comprising a molded body having a rectangular shape and including an outer surface, an inner surface, rounded longitudinally extending edges connecting the inner and outer surfaces, rounded transversely extending edges connecting the inner and outer surfaces, and one or more predetermined holes, wherein, the outer surface has an arc shape from one rounded longitudinally extending edge to the other rounded longitudinally extending edge and the inner surface has a shape corresponding to the outer surface that is separated from the outer surface by a thickness of the molded body, and wherein a fastener is inserted through each predetermined hole from outer surface through the molded body to directly interface with a mounting point in one of the hand guard section and a surface of the small arms weapon to secure the hand guard cover to the small arms weapon.

Abstract: A pivoting firearm handgrip allows a user to pivot the handgrip relative to the firearm into various locked positions. The pivoting handgrip includes a grip base and a grip body that are selectively locked together by a spring biased shaft having key formations. The key formations on the shaft engage keyway formations on finger structures of the grip body. The key structures of the shaft also selectively engage locking formations on supporting structures on the grip base. A spring is captured between the head portion of the shaft and the grip body so that the key formations of the shaft are spring biased to engage the locking formations of the grip base. In use, a user depresses one end of the shaft to disengage the key formations of the shaft from the locking formations of the grip base, and then freely pivots the grip body about the base.

Abstract: An embodiment of a hand guard for a firearm, such as a rifle, includes an elongated tubular housing comprising an upper part, a lower part, opposite open ends, and a lumen configured to receive an intermediate portion of a barrel of a firearm longitudinally therein. An expansion collar is disposed at one end of the housing. The expansion collar has an expansion mechanism configured to adjustably compress the expansion collar and the lower part of the housing longitudinally between a pair of surfaces respectively disposed at opposite ends of the intermediate portion of the barrel.

Abstract: An integrated grip and rail system is provided. Included is a firearm and the firearm grip. The grip is configured to be disposed in front of the magazine well and provide a stable grip point which does not allow a user's thumb or other appendage to be disposed between the grip and magazine well. The grip is configured so as to not interfere with the pivoting relationship between the weapon upper and weapon lower during partial or complete disassembly of the weapon. The rear region may also have a portion extending rearward along at least part of each side of the magazine well to form feed ramps as a part of the magazine well extension. Included is a magazine well extension mechanically coupled to a forearm rail system for mounting to the firearm.

Abstract: The present invention is a fixed stock with integral storage that utilizes a cam plug inside the storage compartment to secure the stock to a firearm. In the preferred embodiment, the cam plug interfaces with the hind edge of the stock body and is therefore visible outside the stock, for a stronger and more secure hold.

Abstract: The tactical precision grip includes an elongate body having an upper mounting portion for mounting the grip to existing mounting hardware on a firearm. At least the sides and back of the body include anti-skid surfaces to prevent slip on the hold during operation. An upper depression is formed on the back of the body for placing a user's thumb, and the front of the body includes an elongate, vertical fingertip groove for placing the user's fingertips during shooting. The depression and the fingertip groove encourage user placement of the respective thumb and fingertips to minimize contact with the firearm grip, thereby enhancing trigger control and shooting accuracy.

Abstract: An ammunition carrier for attaching one or more cartridges to a firearm. The ammunition carrier may comprise a base member for securing the carrier to the stock of a firearm such as a long gun and a cartridge holder for releasably retaining one or more cartridges within a plurality of cartridge storage loops. A releasable connection between the base member and the cartridge holder allows for the cartridge holder and the cartridges held therein to be quickly and easily removed from the stock of the firearm such as when the firearm is to be placed in a case for storage or transport. A cover may also be associated with the ammunition carrier for covering at least a portion of the one or more cartridges and the cover is at least partially moveable to permit selective removal of the one or more cartridges.

Abstract: A light and accessory mount having a mounting bracket for attaching to a weapon mount, the mounting bracket having a proximal side and a distal side, the proximal side of the mounting bracket having one or more mounting holes for connecting the mounting bracket to the weapon mount with mounting fasteners and one or more lugs to engage bosses on the weapon mount; the distal side of the mounting bracket having one or more attachment holes and one of more bosses for attaching a channel assembly to the mounting bracket; the channel assembly including a proximal end and a distal end, the proximal end having one or more attachment points for attaching the channel assembly to the mounting bracket with one or more attachment fasteners and one or more lugs to engage bosses on the distal end of the mounting bracket; and the distal end of the channel assembly having one or more rails for attaching devices.

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: Hand guards for firearms and related methods are provided. In one example, a hand guard includes an elongated housing. The elongated housing comprises a lumen configured to substantially surround an intermediate portion of a barrel of a firearm, a lateral side wall, and a pair of inclined side walls respectively disposed on opposite sides of and inclined relative to the lateral side wall. Each of the inclined side walls comprises an elongated slot, wherein the elongated slots of the inclined side walls define a pair of angulated faces of a rail adapted to receive an accessory to be mounted thereon. For example, the rail may be a reduced-height Picatinny rail provided by the lateral side wall of the housing.