Abstract: A recoil reduction device for a gun includes a gun stock having forward and rear portions that move with respect to each other. Recoil reduction springs are disposed between the movable portions of the stock to absorb the recoil force. The springs are disposed around pins that extend rearwardly from a block. The pins include stops that limit the movement of the rear portion of the stock. The stops may also be used in combination with a recoil reduction lock and a secondary recoil reduction device.

Abstract: A universal recoil pad system allows different recoil pads having different styles, sizes and degrees of softness to be interchangeably attached to a gunstock. The universal recoil pad system includes a recoil pad having a cavity and a rigid frame molded within the pad. A pad attachment member is removably secured to the frame and within the cavity. A gunstock attachment member is attached to the end of the gunstock, for example, using conventional wood screws. The recoil pad is removably attached to the gunstock by slidably engaging the pad attachment member with the gunstock attachment member. A flat spring disposed within the pad attachment member holds the pad attachment member into engagement with the gunstock attachment member. The recoil pad can also include holes for securing the recoil pad to the gunstock using conventional methods.

Abstract: A digit support for AR family receivers designed to reside in a gap left between a receiver's pistol grip and trigger guard. The support fills the gap and ideally separates a user's digit from the gap, thereby protecting the user's digit from injury due to prolonged contact with the walls forming said gap. The digit support is easily installed without removal of any components of or attachments to the receiver and in its best mode allows for the simultaneous opening of the receiver's trigger guard. In the best mode, the support is a body molded from a rubber compound having dimensions to fit snugly in the gap left between the trigger guard and the pistol grip. Ideally, the remaining exposed surface extends slightly higher than the depth of the gap and is cylindrically domed. Also in the best mode, the side of the body abutting the trigger guard mount should have a concavity designed to fit around the trigger guard mount so as to encompass said mount.

Abstract: Accessories for firearms. They are designed to reduce the recoil felt by the shooter when a firearm is discharged. The accessories meet this goal by modifying the decay pattern of vibrations set up in the stock when the firearm is discharged. Kick may be further reduced by elastic compression and also by pneumatic compression of air in sealed pockets formed in and by accessory components.

Abstract: A digit support for AR family receivers designed to reside in a gap left between a receiver's pistol grip and trigger guard. The support fills the gap and ideally separates a user's digit from the gap, thereby protecting the user's digit from injury due to prolonged contact with the walls forming said gap. The digit support is easily installed without removal of any components of or attachments to the receiver and in its best mode allows for the simultaneous opening of the receiver's trigger guard. In the best mode, the support is a body molded from a rubber compound having dimensions to fit snugly in the gap left between the trigger guard and the pistol grip. Ideally, the remaining exposed surface extends slightly higher than the depth of the gap and is cylindrically domed. Also in the best mode, the side of the body abutting the trigger guard mount should have a concavity designed to fit around the trigger guard mount so as to encompass said mount.

Abstract: A recoil reduction device for a gun includes a gun stock having forward and rear portions that move with respect to each other. Recoil reduction springs are disposed between the movable portions of the stock to absorb the recoil force. The springs are disposed around pins that extend rearwardly from a block. The pins include stops that limit the movement of the rear portion of the stock. The stops may also be used in combination with a recoil reduction lock and a secondary recoil reduction device.

Abstract: A shoulder support element is disclosed for use in a firearm. The shoulder support element includes a shoulder support adapted to support the small arm in the firing position and a base plate removably mounted to the shoulder support such that impact forces applied to the base plate are distributed to the shoulder support.

Abstract: A stockbutt system for rifles to abate shock during the firing of a rifle is disclosed, having a butt at the near end. The system includes a rifle and an insert with the butt having a near most first end in a generally planar configuration perpendicular to the axis of the barrel. The first end of the butt has a concave configuration when viewed from the side and a teardrop configuration when viewed from the end. The teardrop shape includes an upper semicircular curve at the top with a diameter essentially equal to the diameter of the widest portion of the butt. The teardrop shape further includes downwardly tapering side edges terminating in a U-shaped configuration at the bottom. The lower semicircular curve has a diameter less than the upper semicircular curve. The insert has an essentially flat far most face in its size and shape to correspond to the rearmost face of the butt. The insert is provided being fabricated of an elastomeric material to abate vibrations during the firing of a rifle.

Abstract: The present invention relates to a recoil pad for a firearm. The recoil pad includes a solid viscoelastic core, preferably formed using a polymer gel, and having a cross sectional shape substantially similar to that of the stock to which the recoil pad is mounted. The recoil pad further includes a covering enclosing at least a portion of the core with the covering having substantially the same shape as the core.

Abstract: The invention concerns a butt pad for the stock of an individual firearm held against the shoulder, such as a shotgun, a sporting firearm, a military firearm, whether smoothbore or rifled which is made up of an external sheath or housing (12) elastically variable in shape consequent to pressure applied externally, by an internal high viscosity element (13), hermetically enclosed in the external sheath (12) and used to absorb and dispel the recoil energy, and a semi-rigid base and support element (14), integral with the external sheath housing and having a device (15) for a removable anchorage of the butt pad to the stock.

Abstract: A weapon grip includes a grip body and a cross-sectionally generally U-shaped grip shell, each having opposite side walls and a rear wall interconnecting the side walls. The grip shell which is a one-piece component, is readily removably and replaceably inserted on the grip body in an installed position such that the walls of the grip body face the respective walls of the grip shell. The grip body and the shell body carry respective first and second abutment faces extending parallel to the length dimension of the grip body. The first and second abutment faces are in contact with one another in the installed position.

Abstract: A forend assembly with a pistol grip assembly which contains a pistol grip and a slide assembly attached to the pistol grip. One portion of the slide assembly is secured to the rear of the forend assembly; and another portion of the slide assembly is resiliently attached to the first portion so that its movement is somewhat restricted. The entire slide asssembly is disposed within a slot located on the underside of the forend.

Abstract: A comb assembly is provided for a shoulder firearm which is designed and adapted to reduce rearwards and upwards recoil of the firearm towards the shooter's cheek at the time of firing. The assembly comprises a housing adapted for mounting on a firearm stock; a movable body portion mountable within the stock and adapted to move forwards and downwards in response to the recoil forces thereby moving the attached cheek piece down and away from the shooter's cheek at the time of the initial firing forces. The housing and movable portion may be combined into a single unit or device suitable for mounting on any standard shoulder firearm such as a rifle or shotgun.

Abstract: An improved recoil absorber and redirector mechanism for a shoulder held gun stock which reduces the effects of recoil by causing one of two normally aligned members mounted on the butt end of a gun stock to move laterally of the other under recoil thereby redirecting the forces of recoil with the movable member resiliently absorbing most of and/or delay the recoil energy which is later used to reset the mechanism to its normal inactive position.

Abstract: A recoil system for the butt stock of a firearm having a recoil suppressor assembly whose front end is mounted in the cavity in the rear end of the butt stock. The piston ram of the recoil suppressor assembly in its static position extends rearwardly into a bore hole cavity of an elongated recoil housing. When the firearm is shot, the elongated body portion of the recoil suppressor assembly and its transversely extending mounting flange portion instantaneously travel rearwardly into the bore hole cavity with the bore hole of the body housing reciprocally traveling over the piston ram. An extension coil spring whose front end is secured to the front end of the body portion and whose rear end is secured to a cam assembly returns the elongated body portion to its static position once the recoil of the firearm has been suppressed.

Abstract: An ergonomic adjustable gun stock having an elongate forearm portion with a longitudinal concave receiver channel in its upper surface for receiving the barrel of a gun, a butt portion extending rearwardly from the forearm portion, a vertically adjustable cheek piece, a longitudinally adjustable and removable auxilary hand gripping element on the underside of the butt portion, and an adjustable recoil butt pad assembly mounted on the rear end of the butt portion. The forearm and butt portions are generally rectangular polygonal configurations having a subtantially flat bottom surface and substantially flat opposed sides. The butt portion has a rounded top surface substantially parallel with its flat bottom surface. A thumb receiving aperture extends transversely through the butt portion near its forward end and defines a contiguous generally vertical handgrip portion adjoined to the forearm portion and a horizontal lower portion which also has a substantially flat bottom surface.

Abstract: A buttstock formed with a single piece of molded synthetic materials and contains two slots so that the rifle may be carried using a sling in multiple positions. The buttstock is designed to have the same size and occupy the same exterior envelop as a standard M-16 rifle buttstock but with far fewer parts and lower weight but without compromising strength. The buttstock comprises a buttplate, a shoulder, and a flange all held in spaced relationship with and integral with a panel. Two slots are formed in the panel near the buttstock, one parallel to the shoulder and the other parallel to the flange. Each slot is dimensioned to receive a sling.

Abstract: An ergonomically deformable grip for special use in firearms is provided. The grip is made of elastomeric material so as to obtain a basic contour at the front of the grip through a series of projections formed from the elastic material. The projections can be similar to thin ribs separated among themselves by narrow empty spaces, over which the fingers of the user's hands, by pressure, support themselves. Such projections can also define the basic profile at the back of the grip, as well as its sides. The height, dimensions and shapes of these projections can be varied. In addition, these projections can be individual without forming elongated ribs.

Abstract: This invention relates to a new and improved design associated with the fabrication and construction of a firearm sighting assembly. In accordance with the invention, the firearm sighting assembly defines a detachable structure capable of being affixed to the stock of a rifle wherein interchangeable elevational elements provide a stationery pedestal for enabling a marksman to aim the firearm while there is mounted upon the firearm a telescopic sight.

Abstract: A recoil system for the butt stock of a firearm having a recoil suppressor assembly whose front end is mounted in the cavity in the rear end of the butt stock. The piston ram of the recoil suppressor assembly in its static position extends rearwardly into a bore hole cavity of an elongated recoil housing. When the firearm is shot, the elongated body portion of the recoil suppressor assembly and its transversely extending mounting flange portion instantaneously travel rearwardly into the bore hole cavity with the bore hole of the body housing reciprocally traveling over the piston ram. A coil spring whose front end is secured to the front end of the body portion and whose rear end is secured to a cam assembly returns the elongated body portion to its static position once the recoil of the firearm has been suppressed.

Abstract: A pistol grip recoil system for a shotgun or rifle and it has a pistol grip recoil assembly having a recoil base member and a pistol grip. The recoil base member is detachably secured to the rear end of the receiver of the firearm and it has an inverted T-shaped rail formed on its bottom wall. This inverted T-shaped rail is captured within and slides in an inverted T-shaped groove in the top end of the pistol grip. A recess formed in the front wall of the pistol grip adjacent its top end allows the trigger guard of the firearm to travel rearwardly with respect to the pistol grip when the firearm is fired. Various embodiments utilize springs to return the recoil base member forwardly to its static position after dissipating the recoil of the firearm resulting from its being fired.

Abstract: Our integral user configurable sniper rifle stock comprises a wide forearm and a relatively narrow carry portion extending rearwardly from the forearm. An action mounting portion extends rearwardly from the carry portion. An angled relatively vertical, stippled grip extends rearwardly and downwardly from the receiver portion. An open rear stock portion extends rearwardly from the grip. The carry portion is narrower and thinner than the forearm. The action mounting, grip and rear portions are generally as wide as the carry portion. The forearm comprises a forend having an angled base and a flat serrated base portion extending rearwardly from the forend. A "T" channel rail is disposed within the angled base to mount a bipod. The folded legs of a bipod lie along the barrel. The grip defines a weight receptive cavity. A trigger guard extends from the receiver portion to the grip. The rear stock portion comprises upper and lower braces with a butt extending vertically between rear extents of the braces.

Abstract: A recoil pad for universal attachment to firearm stocks of varied size. The recoil pad is a boot, formed of resilient foam material, having a base wall for engagement with the butt of a firearm stock. A retaining sleeve extends from the base wall for engagement with the periphery of a firearm stock. The retaining sleeve has an opening which defines an integral strap portion in the retaining sleeve spaced from the base wall. The integral strap portion may be stretched to accommodate and snugly retain firearm stocks of varied size.

Abstract: A slip on recoil pad having a sleeve portion and a cushion portion. The sleeve and cushion portions can be formed integral with one another or be separate components attached together. The sleeve component may be comprised of a neoprene or polypropylene rubber for providing enhanced cushioning, warmth, and durability, and may also include a rifle sling attachment stud, grommet. The rifle sling attachment stud preferably includes a reinforcing liner or strip to prevent the reinforcing stud from pulling through the sleeve portion of the recoil pad. In addition, a protective layer is provided to overlie the rivet, or grommet portion attached to the eyelet of the rifle sling attachment stud to prevent marring or scratching of the rifle stock when it is installed and attached thereto.

Abstract: A handgun grip enhancer unit for use with side panel grip type handguns. The unit is made from elastomer and includes a forward finger rest cushion member molded integral with reduced thickness side wing members which extend rearwardly in full face engagement with the gun handle and beneath the standard side panel grip elements.

Abstract: A comb and coil assembly for a shoulder firearm, the firearm having a stock with a butt end and a barrel end, includes a cheek piece which is connected to the upper surface of the stock. The cheek piece is movable between an extended position and a retracted position. A recoil mechanism is located in the interior of the stock and has a moving member which moves relative to the stock in response to the recoil of the firearm upon firing. The moving member and the cheek piece are connected by a cam and cam follower arrangement to substantially maintain the cheek piece in the extended position when the moving member is at rest and to permit the cheek piece to move to the retracted position upon the motion of the moving member in response to the recoil of the firearm.

Abstract: A recoil pad assembly is provided for attachment to a firearm stock. The recoil pad assembly includes a recoil pad, which includes a rib extending along the outer edge of its base. The rib is disposed adjacent a wall of a base plate shaped to receive the recoil pad. A locking plate, disposed within the recoil pad, is forced downward by fastening screws which extend through the base plate and into the stock of a firearm. When the locking plate is forced to be flushed with a lower wall of the base plate, the rib of the recoil pad is held between the two. The base plate is provided with a plurality of apertures into which portions of the rib are forced, thereby locking the recoil pad into place.

Abstract: A recoil pad for a shoulder gun such as a rifle or shotgun having a compressible pad on the butt of the stock to absorb and cushion the shock to the shooter when the gun is fired. This recoil pad may be assembled to the gun at manufacture or applied to the gun by the owner after-market. This recoil pad may be constructed of an elastomeric material such as closed-cell-foam containing a compressible fluid such as air or gas. An alternative embodiment is a bladder and a pump for inflation of the recoil pad at the will of the shooter. Another alternative is a bladder having a certain pressure.

Abstract: A gun stock adapted for absorbing recoil energy in a shoulder firearm which includes a stock butt portion and a stock grip portion interconnected by at least one compressible strut having an adjustable length cylinder where one end thereof is secured to the stock butt portion. A tubular shaft is telescopically disposed within the cylinder with its free end attached to the stock grip. A plug is disposed within the cylinder carrying a rod coaxial with the cylinder whose free end is disposed within the tubular shaft. A stack of disc shaped springs are coaxially positioned within the tubular shaft and are circumscribed around the rod, the stack being between the stock grip and the plug and adapted to be compressed upon movement of the shaft into the cylinder upon the firing of the gun.

Abstract: A shoulder gun stock assembly with a comb piece which is universally adjustable fore and aft, up and down, and laterally, for more comfortable and accurate shooting.

Abstract: A recoil pad assembly (10) fitted to the stock of a weapon (W) such as a rifle or shotgun for cushioning a shooter (M) against recoil forces produced when the weapon is discharged. A first pad member (12) is installed on a butt end (E) of the stock (T) of the weapon. A second pad member (14) is pressed against a shoulder (S) of the shooter when the shooter prepares to discharge the weapon. The second pad member interfits with the first pad member for movement of the pad members relative to each other when the weapon is discharged. Compression springs (56) then restore the pad members to their original position relative to each other. A seal is effected between the pad members when the weapon is discharged trapping air between the members. Relative movement of the pad members then compresses the air producing a cushioning effect which lessens the recoil force to which the shooter is subjected.

Abstract: A butt stock extender for a rifle to avoid the impact of recoil on an adjacent head portion of the operator.

Abstract: Disclosed is a combination flexible cheek piece, stock cover, ammunition holder and pouch for long guns such as rifles and shotguns. The combination is designed to be held about the stock of a long gun by adjustable straps which hold the device securely on the stock of the gun. One face presents a cheek piece for the shooter. The opposite face presents a series of cartridge loops as well as pouch for holding small items. In one embodiment, a second pouch is secured to the top of the device to elevate the cheek piece, particularly for use with rifles carrying a telescopic sight. Hook and pile type fasteners are used for effective adjustable fit.

Abstract: A recoil pad for attachment to a firearm buttstock of the type having a retaining sleeve (14) and an end wall (16) which communicate to form a unitary boot. The sleeve (14) and wall (16) are constructed of similar density foam material, so as to absorb recoil upon the discharge of the firearm. The predetermined exterior dimension of the unitary boot is substantially larger than the dimension of rifle buttstock (12). This increased area allows the pad to disperse recoil impact more effectively. In addition, the retaining sleeve (14) may contain two, or more, sets of corresponding integrated incisions (22,24,26) which define earplug excisions (20).

Abstract: A recoil pad assembly is provided for attachment to a firearm stock. The assembly includes a recoil pad section and a bracket attachment section integrally formed therewith. The recoil pad section includes a number of levels along the height thereof. Each of the levels has cut-outs together with ribs and membranes interspersed among the cut-outs. The arrangement of the cut-outs, ribs and membranes provides desired strength for cushioning against recoil forces generated by the firearm while enhancing the softness of the recoil pad section material. The assembly also includes a mounting bar subassembly affixed to the firearm stock. The mounting bar subassembly includes ramping surfaces. Containment brackets are joined to the bracket attachment section and are drawn together using the ramping surfaces and the tightening of fasteners.

Abstract: A storage space for an ammunition clip is built into the stock of a gun. The clip preferably contains 16 bullets, and can either be the main clip or an auxiliary clip.

Abstract: A light armor piercing weapon, which is hand carried by a single man, is provided for firing or launching armor piercing rocket propelled projectiles. A propellent pack is worn or carried by the soldier along with a launching rifle. Unsymmetrical dimethylhydrazine is provided as a propellent and inhibited red fuming nitric acid, Type IIIa, is provided as an oxidant in a combustion chamber in the rifle. The explosive combination of the propellent and oxidant propels the projectile out of a smooth bore barrel and simultaneously ignites the solid propellent in the projectile. The projectile is provided with a disposable sabot which seals the projectile within the smooth bore. The projectile is provided from a spiral drum magazine which is gear driven by a mechanical coupling with a reciprocating breech block within the rifle. The reciprocating breech block in turn is gear driven by a gas driven piston communicated with the barrel.

Abstract: The improved handgun assembly of the present invention includes a handgun with barrel and a butt having a handgrip, and a novel handgun brace resting against but otherwise unconnected to the handgun. The brace is in the form of a unitary rod having an upraised front portion, an intermediate portion connected thereto and sloping downwardly and rearwardly therefrom, and a rear portion connected to the intermediate portion and extending downwardly and rearwardly therefrom. The front portion bears an upraised, preferably detachable fork which holds the gun barrel. The fork may be stepped to accommodate gun barrels of various diameters. The intermediate portion includes a palm rest and a gun butt holder. The palm rest and holder may be in form of a single tube with an elongated recess into which the butt fits. There may be an elongated bottom slot in the tube up thru which a slideable stop pin fits to brace the back of the gun butt.

Abstract: A gunstock which has a combination of elements including a contoured pistol handgrip portion, an adjustable face engaging means, and double longitudinal buttstock cast. The contoured pistol handgrip in combination with the adjustable face engaging means and longitudinal buttstock cast allow the user to most completely absorb the recoil of the rifle as well as allow uniform positioning of the rifle for sighting.

Abstract: A shoulder gun stock assembly has a comb piece coordinated with a shoulder piece and an associated recoil assembly. The comb piece and shoulder piece remain stationary during shooting while the recoil assembly absorbs the recoil. The comb piece provides a stationary cheek rest which eliminates the cheek-chafing action usually associated with the operation of shoulder firearms.

Abstract: A shooting coat for absorbing shock of shooting comprises an outer cloth, a gun receiver pad attached to a rear surface of the outer cloth, a plurality of projections dispersed uniformly on an outer surface of the gun receiver pad, and a lining cloth attached over the projections for covering the gun receiver pad.

Abstract: A device for adjustably mounting a recoil absorber on the butt stock end of a gun so that the recoil absorber can be adjustably moved up and down, crosswise, rotationally or at an angle on the stock or readily transferred to another stock with ease and in a short period of time.

Abstract: A compound grip for handguns for delaying, redirecting and absorbing shock produced after firing attaches to the rear frame portion of the handgun adjacent the trigger guard. The compound grip includes an elastomeric base, a pair of palmpiece inserts and alignment finger rests. The base also includes one or more fluid filled bags rearward of the rear frame portion of the handgun. A pair of mirror image palmpiece inserts each include an embedded gel sac which delays the aftershock forces. Upon firing of the handgun, the gel sac delays the aftershock forces, the fluid-filled bags absorbs these forces and redirects them, the elastomeric finger rests maintain realignment of the handgun, and the palmpiece inserts retain adequate "feel" of the handgun.

Abstract: The subject recoil pad for rifles and shotguns is a one-piece plastic spring comprising a base which attaches to the end of the butt of the rifle or shotgun, a working part which, in use, contacts the user's shoulder and two struts interconnecting the base and working part. In plan view the pad has an elongated egg shape, matching the shape of the end of the butt. The base, working part and struts are all essentially flat, the base and working part being parallel to each other and about 3/8 of an inch apart. The struts extend from the ends of the working part at an angle to the base so that the junctures of the struts and base are some distance from the ends of the base. The angles are in the range of 30.degree. to 50.degree. with 40.degree. preferred.

Abstract: Automatic hand guns in contrast to conventional pistols are commonly supplied with reversing hammer mechanisms for the firing pins immediately above and adjacent to the top of the grip which is set in motion by pulling the trigger. A magazine for shells is held in place in the handle by use of a releasable catch which must be readily manipulated by hand when a magazine is to be removed and replaced. Cushion-type reinforced replaceable grips have portions of the reinforcement specially formed at critical locations to make certain that there is no deformation of those portions of the grip which might otherwise impair either the hammer mechanism or the magazine release.

Abstract: A recoil pad for a shoulder gun such as a rifle or shotgun, including a body of elastomeric cushioning material to be received between the buttstock of the gun and a user'shoulder, and an insert member formed of a material harder than the elastomeric material and embedded within a recess in the back of the elastomeric body near its upper end. The pad may also include an attachment plate secured to the front of the elastomeric body. The insert member has a rear surface which engages the user's clothing at a location above an aligned rear surface of the elastomeric body, to reduce the friction at the location of the insert and facilitate sliding of the recoil pad upwardly adjacent the clothing to firing position. The elastomeric body has a portion extending upwardly in front of the harder insert to be received between that insert and the buttstock of the gun and cushion the transmission of recoil forces from the gun to the insert.

Abstract: An integral grip for the handle of a handgun frame is molded from a resilient, flexible, synthetic plastic material. The grip is of generally U-shaped configuration including a curved rear wall and two spaced opposed sidewall portions. The sidewall portions are biased inwardly from the rear wall portion to their outer edges and are also of tapered cross-section diminishing from the rear wall to the outer edges thereof. The material, its distribution and inward bias of the sidewall portions are such that when fitted onto the handle of the handgun frame, the grip will be in tensioned, clamping relation thereon. An undercut rib is disposed on the inner surface of each sidewall portion adjacent the outer edge thereof for interlocking with a recessed edge portion of the handle. Adjacent the lower end of its rear wall portion, the grip includes a boss with a bore therethrough. The handle, itself, includes two laterally-spaced arms which also include bores aligned with the bore of the boss.

Abstract: The present invention is an improved recoil pad for attachment to the butt end of a firearm's stock. A series of springs, preferably helical, are utilized to reduce the transfer of recoil energy to the shooter. Interior air is released through air channels to reduce the forces opposing compression of the recoil pad. Further, the pad utilized compressible foam to aid in overall compressibility.

Abstract: A pair of oppositely oriented cylinders are telescopically arranged to contain an assembly of piston, plunger and springs. One of the cylinders carries a recoil pad, and the other cylinder is mounted within the butt end of a firearm stock. Recoil forces are interrupted in their transfer to the recoil pad by operation of the assembly.

Abstract: An adjustable comb and buttplate assembly for shoulder firearms, such as shotguns, having a stock and a recoil reducing or absorbing means at the butt end of the stock, comprises a buttplate slidably and removably mounted at the rear of the stock in engagement with the recoil absorbing means, a comb slidably mounted on the stock and interengaged with the butt plate for retaining the buttplate on the stock, the comb and buttplate being slidable as a unit relative to the stock so that the comb and buttplate may remain stationary relative to the shooter's head and body when the firearm and its stock recoil upon firing of the firearm, the comb being capable of disassociation from the buttplate to accomodate removal of the buttplate and replacement of the same by another buttplate providing a different stock length and/or a different pitchdown angle for the firearm, and means accessible from the exterior of the firearm and the stock, comb and buttplate for varying the elevation of the comb relative to the stock, t