Abstract: In a firearm of the type having an open-top receiver and a nonrotatable breech bolt longitudinally slidable therein between open and closed positions in which an upper portion of the breech bolt is exposed, the upper portion of the breech bolt is adapted to allow a sighting device to be fixedly but removably mounted thereto. The upper portion of the breech bolt preferably has a pair of longitudinally extending and transversely opposed grooves positioned above but closely adjacent to opposite sides of the receiver. One or more conventional mounting clamps can be employed to securely engage the grooves for mounting a sighting device to the bolt. The sighting device should be sufficiently short to ensure that ejected shell casings do not impact any part of the sighting device.

Abstract: A scope mount base design which readily accepts onto a preexisting rear sight base without any alteration of the sight base except for the easy removal of the original sight leaf and mainspring. This scope mount invention achieves solid lockup by the use of the appropriate sized threaded support fixtures and scope mount configuration to successfully engage these rear sight slots that originally contained the sight leaf and mainspring, and thus achieve strong lockup of the scope mount to the sight base.

Abstract: A connecting piece couplable to a rail of a weapon is described. An example connecting pieces includes a first retaining element including a first receiving region configured to engage a corresponding first counterface of the rail. The example connecting piece also includes a second retaining element including a second receiving region configured to engage a corresponding second counterface of the rail. In addition, the example connecting piece includes a guide slot running diagonally to a longitudinal direction of the rail via which the first retaining element and the second retaining elements are coupled.

Abstract: Tactical firearm systems and methods of manufacturing tactical firearm systems are discussed herein. In some embodiments, a tactical weapons platform can comprise a forend assembly adapted to house a portion of a barrel; a receiver assembly detachably coupled to the forend assembly and adapted to interface with a bolt action; and a butt stock assembly detachably coupled to the receiver assembly. In other embodiments, a modular stock assembly for a bolt action rifle can generally comprise a forend assembly, a receiver assembly, and a butt stock assembly. The forend assembly can have a body adapted to house a barrel in a free floating configuration, wherein the body surrounds at least a portion of the length of the barrel. The receiver assembly can be detachably coupled to the forend assembly and adapted to directly interface with a bolt action without bedding. The butt stock assembly can be detachably coupled the receiver assembly by a hinge.

Abstract: An improved mounting assembly is provided that is configured to be releasably mounted onto a standard dovetail rail profile and includes a positive index that corresponds to a fully opened position. The mounting assembly includes a boss formation that extends from one side thereof. A foot portion and an actuator arm are installed into the boss formation and serve as a means for engaging and disengaging the mounting assembly relative to the dovetail rail. An indexing formation is provided on the boss and is configured such that the indexing formation engages the clamping assembly to prevent over rotation of the foot portion and thus allowing the actuator arm to be positioned in a fully disengaged, open position where the foot portion will not interfere with removal or installation of the mounting assembly relative to the rail.

Abstract: An interface device is provided for securing a range finder to a Picatinny rail. The device has a longitudinal direction with first and second mounts, which are pivotably connected to open and closed configurations. The mounts are in substantially parallel and coaxial mutual positions along the longitudinal direction while in the closed configuration, and instead rotated along a first axis substantially perpendicular to the longitudinal direction in the open configuration. The device further includes a stock onto which the Picatinny rail attaches along the longitudinal direction, the stock being pivotably connecting to the first mount along a second axis substantially parallel to the first axis to one of a lock configuration to be substantially parallel to the first mount and a release configuration to pitch said stock relative to the first mount.

Abstract: The quick release gun sight adapter includes a scope adapter, a red dot sight adapter, a locking block, a spring loaded ramped blade, and a spring loaded latch piston. The red dot sight adapter is attachable to a red dot sight and the ramped blade is attached to the red dot sight adapter. The ramped blade is rotatably attachable to the scope adapter, and the scope adapter is rotatably adapted to hold the ramped blade such that when the ramped blade is attached to the scope adapter, and the ramped blade and the red dot sight adapter are rotated the ramped blade engages the locking block and locks the ramped blade into place. The piston communicates with the locking block such that when actuated the piston engages the locking block such that the ramped blade and red dot sight adapter may be rotated and unattached from the scope adapter.

Abstract: Back-up sights for use on a rifle configured with an optical sight aligned along a first sighting axis include a handguard or support carrying first and second attachment points that are substantially parallel with the central axis of the rifle's barrel but offset at a different angle than the first sighting axis. A back-up front sight and rear sight are carried on a back-up sight base, where the front sight and rear sight are aligned along a second sight axis that is offset, preferably, by one-eighth turn from the first sighting axis. When using the back-up sights, the user tilts or cants the rifle to one side, rotating the rifle one-eighth turn about the axis of the barrel's bore, to look down the second sighting axis, while aiming the rifle at the target.

Abstract: An improved mounting assembly is provided that is configured to be releasably attached to a standard dovetail rail profile, wherein the initial clamping tension of the clamping actuator is adjustable. The mounting assembly generally includes a main body having a lower portion that is configured to engage a standard dovetail and an upper portion accessory receiving formation. The lower portion of the mounting assembly has a first engagement member extending downwardly along one side thereof for engaging one side of the dovetail rail and a clamping assembly to engage the opposing side of the dovetail rail. At least one spring and a retention nut are provided as part of the clamping assembly such that retention nut controls the preset spring tension thereby controlling the clamping force applied by the clamping assembly.

Abstract: An improved mounting assembly is provided that is configured to be releasably attached to a standard dovetail rail profile, wherein the initial clamping tension of the clamping actuator is adjustable. The mounting assembly generally includes a main body having a lower portion that is configured to engage a standard dovetail and an upper portion accessory receiving formation. The lower portion of the mounting assembly has a first engagement member extending downwardly along one side thereof for engaging one side of the dovetail rail and a clamping assembly to engage the opposing side of the dovetail rail. At least one spring and a retention nut are provided as part of the clamping assembly such that a retention nut, which is locked relative to the clamping assembly, controls the preset spring tension thereby controlling the clamping force applied by the clamping assembly.

Abstract: A system for interchangeably mounting sighting devices on a plurality of firearms which includes one or more ring assemblies and one or more mounting assemblies. A sighting device is coupled to a mounting assembly using a ring assembly forming a mounting system. The system can then be mounted to one or more firearms using a single connector via two receptacles in the surface of the firearm. An entirely different sighting device and associated mounting system can be exchanged with the existing sighting device by removing the existing mounting system and replacing it with the new sighting device and mounting system. Each sighting device and mounting system are configured to have identical mounting assemblies that interface into standard receptacles in the firearm. In a similar manner a single sighting device and associated mounting system can be mounted on several firearms that each possess the two mounting receptacles.

Abstract: A universal accessory mount for a heavy machine gun includes an annular base adapted to be disposed concentrically over a front end of a shroud of the gun and having diametrically opposing upper and lower accessory mounting tines extending forwardly therefrom. A holding mechanism pulls a planar floor of a counterbore in the rear of the base into contact with a planar front surface of the shroud of the gun. The holding mechanism includes a pair of threaded bolts extending rearwardly from the base through respective ones of a pair of diametrically opposing bolt apertures contained in the base, and a pair of cleats, each having an opening into which a rear end portion of a respective one of the bolts is received and a respective hook adapted to grip the shroud of the gun through a respective hole in the shroud.

Abstract: A mounting assembly for attaching an accessory to a dovetail rail interface comprising a mount body, a boss formation extending from a side of the mount body, and a clamping assembly received within the boss formation. The clamping assembly including a camming foot and an actuator arm affixed to the camming foot where rotation of the actuator arm causes rotation of the camming foot. The clamping assembly is movable between an engaged position and a disengaged position. The mounting assembly further includes a spring biased latching assembly configured and arranged to selectively retain said clamping assembly in said engaged position.

Abstract: A device and method of using the device to attach an accessory to a firearm. The device is a longitudinally elongated, rigid, two-piece clamping coupling forming a longitudinally extending channel with a longitudinally extending seam and a longitudinally extending lateral gap in the coupling between the pieces. A set of longitudinally spaced clamping screws operably engaging both pieces of the coupling and extending laterally across the seam for laterally repositioning the pieces relative to one another to effect compressive clamping when rotated. A longitudinally extending receiving track is formed in at least one of the pieces.

Abstract: An adjustable accessory mounting clamp for mounting an accessory to an accessory rail, including a primary locking arm; a secondary locking arm; a threaded adjustment rod that is anchored, at a first end, to the primary locking arm, extends through an aperture in the secondary locking arm, and is threadedly coupled to a cam lever pin of a cam lever, wherein the cam lever includes at least one caming surface, such that when the cam lever is in a closed position, the caming surface contacts an outer surface portion of the secondary locking arm to provide tension to the threaded adjustment rod; such that a distance between the primary locking claw and the secondary locking claw is adjusted to accommodate varying width accessory mounting rails.

Abstract: A sight mount for fire arms comprises a base part (10) to be mounted on a fire arm, and an upper part (11) to have a sight mounted thereon. The upper part is pivoted relative to the base part for movement about an axis between a first position corresponding to the operative position of the sight, wherein a projection (33) on the, upper part or the base part engages a groove (29) on the other part, and a second position transverse to the first position, wherein the projection is disengaged from the groove to allow the upper part to be separated from the base part. A latch (21) is spring biased to an engaged position preventing pivoting of the upper part, and against the spring bias can be brought into a disengaged position allowing pivoting of the upper part.

Abstract: A self adjusting throw lever and rail clamp system for use with sighting equipment where there is a need to efficiently remove or interchange sighting equipment on a host mounting surface. The throw lever self adjusts to compensate for variations in the host mounting surface, such as an angular rail, and utilizes a buffer to prevent the surface of the mounting surface from becoming marred. No tool is required to adjust the throw lever releasable mounting system as the system has an internal means to self adjust to fit the mounting surface. Once the throw lever is secured in the closed position, tension placed by a thru shaft on the housing of the throw lever prevents free movement of the throw lever.

Abstract: A gun attachment holder includes a device holder, which has a coupling groove detachably coupled to a coupling flange of a gun and a sliding groove transversely extending across the coupling groove, two locking members reversely arranged in parallel and slidably mounted in the sliding groove and movable between a locking position to lock the device holder to the coupling flange of the gun and an unlocking position to unlock the device holder from the coupling flange of the gun, and a torsional spring set in between the locking members to hold the locking members in the unlocking position.

Abstract: A compact spotting scope includes a housing with an outer surface having a grasping region sized and shaped to fit in a user's hand. An optical element positioned within the housing is adjusted by manually rotating a side-mounted adjustment knob that extends laterally from the outer surface of the housing opposite the grasping region. The side-mounted position of the adjustment knob allows the arm and wrist of the focusing hand to be maintained in an ergonomic position during manipulation of the adjustment knob, thereby further facilitating steady support. An internal support member of the spotting scope includes a frame portion and a generally tubular portion, which are preferably formed together of unitary one-piece construction for aligning optical elements of the spotting scope.

Abstract: A removable optical sight mount adapted for use with a military-style rifle such as an M1A provides a centrally aligned support projecting well to the rear for use with sights having very limited eye relief. The removable sight advantageously uses a three point lock up or attachment to the rifle, the three points being (1) an elongated longitudinal tenon engaging a groove on the left side of the rifle secured with a fastener and cammed into tight engagement with the groove, (2) a transverse rear guide block, and (3) an adjustable front set screw that, when tightened, bears on the rifle receiver's crown.

Abstract: Accessory rails for use with firearms are disclosed. An example rail includes a front sight arrangement that has a width less than the width of the rail, wherein the front sight arrangement is retractable and wherein the front sight arrangement is laterally adjustable. The example rail also includes a rear sight arrangement that has a width less than the width of the rail, wherein the rear sight arrangement is retractable and wherein the rear sight arrangement is laterally adjustable.

Abstract: A range finder adapted to be mounted to a scope. The range finder includes a main housing, range finding circuit received in the main housing and a mounting mechanism adapted to mount the main housing to a scope.

Abstract: An adapter for mounting an accessory on a shroud such as is found on an M2 machine gun includes a rigid block embracing the shroud. Blunt-nosed helically threaded plugs penetrate the block and intrude partly into perforations of the shroud. Retaining rings, threaded oppositely to the threaded plugs, prevent the plugs from backing out. A key tool is provided to tighten the plugs and retaining rings. A longitudinally oriented T-rail projects radially from the block. A slide body engages the T-rail and includes a locking mechanism, a lamp assembly, a logically switched power control, a power cable, and a control cable with interchangeable switches.

Abstract: A scope mounting system having one or more components formed of a zinc alloy, preferably an alloy of zinc, aluminum, magnesium and copper. In one form, the component is formed of an alloy of zinc with about 3.5 to 4.3 weight percent aluminum, about 0.02 to 0.05 weight percent magnesium, and about 2.5 to 3.0 weight percent copper. The scope mounting system preferably includes one or more components, such as a base and/or rings, at least one of the components being formed by casting.

Abstract: Accessory rails for use with firearms are disclosed. An example rail includes a front sight arrangement that has a width less than the width of the rail, wherein the front sight arrangement is retractable and wherein the front sight arrangement is laterally adjustable. The example rail also includes a rear sight arrangement that has a width less than the width of the rail, wherein the rear sight arrangement is retractable and wherein the rear sight arrangement is laterally adjustable.

Abstract: A device mount for a weapon is provided. The device mount includes a support portion and a side portion. The support portion is adapted to support a device. The support portion includes a plurality of mounting apertures. The side portion is coupled to the support portion. The side portion has a first side positioned generally at a right angle to the support portion. The side portion further has a second side. Moreover, the second side has a mounting connection portion adapted to connect the device mount to a weapon.

Abstract: A firearm scope mounting system where recesses and protrusions in the scope ring precisely mate with like recesses and protrusions in the telescopic sight tube itself to prevent the scope from moving fore and aft as well as rotationally under recoil or other forces. Additionally, these mating surfaces can be designed in such a way that the crosshairs of the scope are perfectly aligned horizontally and vertically when the scope is installed in the rings. The method of attaching the scope rings to the base and the base to the firearm is not the subject of this patent claim.

Abstract: A mount for mounting a device to a firearm that includes a side plate, a support plate and a mounting rail. The side plate has a first end and a second end. The support plate extends from the first end of the side plate at approximately a right angle. Moreover, the support plate is adapted to support a device resting thereon. The mounting rail is coupled to the second end of the side plate. In addition, the mounting rail extends out from the side plate in a direction that is approximately opposite the direction the support plate extends from the side plate.

Abstract: A device mount for a weapon with a stabilizing function is provided. In one embodiment, the device mount includes a device bracket, a stabilizing tube and at least one stabilizing member. The device bracket has a support plate and a side plate that extends generally at a right angle from the support plate. The stabilizing tube is movably coupled to the side plate. The at least one stabilizing member is received in the stabilizing tube. Moreover, the at least one stabilizing member is configured to stabilize motion of the device bracket.

Abstract: A sight mount for a firearm includes a base, and a rearwardly extending mounting portion for supporting a removable secondary optic mount. The base includes dovetail rails for securing the base to a firearm, and a mount position for accepting an electronic optic. The rearwardly extending mounting portion has transverse slots which follow the 1913 Picatinny specifications. The base serves as a mount point for up to two optics, the primary and secondary optics. The primary optic being a non magnified electronic optic and the secondary optic such either a night vision device or magnifier. The extended mounting position utilizes a small, light weight ring or other apparatus as is appropriate to hold onto the secondary optic. By using one base for both optics weight is reduced and the secondary optic when remove provides a stream lined package.

Abstract: Apparatus and methods are described for an example sight device with an adjustable sight line for use in a firearm. The example sight device described herein includes a base plate and a holder, wherein the holder is pivotable and includes a target device that defines the sight line. The sight device also includes a locking device that couples the holder and the base plate in one of a plurality of pivot positions. The locking device includes an adjustable locking element that engages at least one of a plurality of adjustment areas. Further, the plurality of adjustment areas include a plurality of notches, wherein each of the plurality of pivot positions is associated with one of the plurality of adjustment areas based on an ammunition type and one of the plurality of notches based on a distance to a target.

Abstract: A firearm accessory mount includes a main part with a rail receiving portion extending in a first direction that can receive a firearm mount rail, and includes a holding part with a rail engaging portion. The holding part is movable relative to the main part so that the rail engaging portion moves approximately parallel to a second direction forming an angle to the first direction. An adjusting portion positionally adjusts the rail engaging portion with respect to the main part, approximately parallel to a third direction transverse to each of the first and second directions. A manually operable member is operatively coupled to the holding part so that the holding part is moved approximately parallel to the second direction in response to movement of the member.

Abstract: A mounting system includes an electronic device, a support plate, and a scope ring. The electronic device has a bottom surface. The support plate is engaged with the bottom surface and has a first mounting rail extending along a first side. The scope ring has a first clamp for coupling to the first mounting rail and a second clamp for surrounding the scope thereby attaching the electronic device to the scope.

Abstract: A device mount for a weapon with a stabilizing function is provided. In one embodiment, the device mount includes a device bracket, a stabilizing tube and at least one stabilizing member. The device bracket has a support plate and a side plate that extends generally at a right angle from the support plate. The stabilizing tube is movably coupled to the side plate. The at least one stabilizing member is received in the stabilizing tube. Moreover, the at least one stabilizing member is configured to stabilize motion of the device bracket.

Abstract: An accessory device for being mounted to a longitudinal rail carried by a firearm and accommodating longitudinal rails of different configurations. A preferred embodiment comprises a light beam generator including a housing, elongate members removably secured to the housing and complementing the rail for enabling the housing to be retainably slid along the rail, a transverse rail latching device removably secured to the housing, and a replaceable ambidextrous tail cap switch.

Abstract: A magazine tube and barrel clamp with integral target illuminator, wherein a laser module can be incorporated is provided for a firearm having a magazine tube and a barrel. The frame defines a clamping sleeve for substantially encircling the magazine tube and a barrel receiving channel for receiving a diameter of the barrel, wherein the magazine tube and the barrel are thus fixed in a predetermined spacing. The frame further defines an illuminator recess for receiving a substantial portion of a reflector in the target illuminator, thereby shielding the target illuminator from contact with external surfaces. A driver circuit is retained within the frame to selectively operate the target illuminator and a laser sight, wherein the target illuminator can be a solid-state light emitting device.

Abstract: A mount for mounting a device to a firearm that includes a side plate, a support plate and a mounting rail. The side plate has a first end and a second end. The support plate extends from the first end of the side plate at approximately a right angle. Moreover, the support plate is adapted to support a device resting thereon. The mounting rail is coupled to the second end of the side plat. In addition, the mounting rail extends out from the side plate in a direction that is approximately opposite the direction the support plate extends from the side plate.

Abstract: A night sight includes a notched bottom portion, permitting the use of a large objective lens for maximized light gathering capability while also permitting the night sight to be mounted with its center line relatively close to the center line of the barrel of the weapon with which it is used. This configuration permits the night sight to be mounted so that its center line is the same as the center line of a daytime telescopic sight used in conjunction with the night sight. The night sight includes a focusing assembly having decreased sensitivity to tilt or decenter, and a collimator mounted within a spherical bearing so that the collimator may be precisely aligned during assembly of the night sight. The night sight thereby ensures that an image viewed through the night sight appears to originate from the same angle as that with which the image entered the objective lens, and further resists a need to compensate for parallax during aiming.

Abstract: A rest for cleaning a rifle and for sighting a scope, a stock, and a bore of the rifle. The rest includes a base, a vise assembly, a fore-end support assembly, and an elevator assembly. The vise assembly adjusts for different-length rifles and clamps the stock of the rifle therein. The fore-end support assembly adjusts for the different-length rifles and supports the fore-end of the rifle thereon. The elevator assembly adjusts for the different-length rifles and supports the barrel of the rifle therein. The rest further includes a lapping tool, alignment tools, a stock alignment tool, a bore sighting tool, a centering tool, and a set of diopters. The lapping tool insures smoothness and proper interior profile of the mounting rings for a scope. The alignment tools insures that the scope fits properly without any binding or protrusions. The stock alignment tool lines up the stock of the gun so the gun is leveled. The bore sighting calibrates the scope. The centering tool cradles, centers, and supports the gun.

Abstract: A new and useful structure and method are provided that enable a coupling device to be integrated with an auxiliary device and to be effectively operated to securely couple the auxiliary device to a male dovetail rail (e.g. the male dovetail rail of a firearm). In addition, the structure and method of the present invention are designed to provide a range of adjustment over which the coupling structure can be effectively operated. Thus, the coupling structure can take up a range of tolerance variations in the manufacture of the male dovetail rail.

Abstract: In a self-contained actively-controlled stabilization system within a hand-grip, all components are contained within the handgrip, and one generic handgrip can be attached to a variety of devices for a wide range of applications, thereby increasing portability, reducing weight and bulkiness, and decreasing complexity and application dependence. The handgrip includes a sensor, a controller and an actuator which preferably employs at least one shape memory alloy wire. The actuator drives a platform mechanism which may be configured such that the elevation and azimuth degrees of freedom are coupled or uncoupled. Direct, rotational and other platform mechanisms may be used with the invention.

Abstract: A universal scope mounting system for a firearm includes an integral base/lower ring half component having a base panel portion and a split ring portion extending therefrom, and defining a plurality of mounting holes for receiving mounting screws to attach the base/lower ring half component to a firearm. The system also includes an upper ring half component for attachment to the base/lower ring half component to engage a scope within a receiver opening defined therebetween. The mounting holes of each base/lower ring half component define two or more different mounting hole configurations, permitting universal application to firearms having different scope mounting hole arrangements.

Abstract: A mount comprising a connecting portion attachable to a firearm, a first member connected to the connecting portion to be rotatable about a first axis, a second member connected to the first member to be rotatable about a second axis substantially perpendicular to the first axis, and an attachment system connected to the second member for receiving an accessory. Also, a mount attachable to a firearm and having a dampener system connected to base and body portions thereof, the dampener system acting to dampen a recoil force produced by the firearm. Further, a mount attachable to a firearm and allowing a first rotation varying an azimuth of an accessory and a second rotation varying an angle of elevation of the accessory, and control means adjusting the second rotation to obtain a desired value and automatically producing the first rotation to correct a lateral drift of the firearm.

Abstract: It is formed by a longitudinal support, with means for fixing a scope (8) in its upper part, comprising likewise the referred rifle (2), a series of longitudinal slots (4), faced with said accessory (1), and is characterized in that the mentioned accessory (1) incorporates some longitudinal guides (3), in its lower part, adapted for their fitting in the slots (4) of the same air rifle (2)

Abstract: A mounting apparatus for mounting an optical sight on a rifle has an elongated rail and a mounting base projecting downwardly from the rail for securing the rail on a rifle. The rail has an upwardly facing channel extending along its length for receiving a mounting element of a first type of optical sight, the base of the channel having a plurality of openings for receiving fastener devices for selectively securing an optical sight at a selected location along the length of the rail. The opposite sides of the rail each have a plurality of spaced tabs forming a Picatinney rail for mounting a second type of optical sight having a mounting element for engaging over the Picatinney rail. The mounting rail therefore combines the mounting formations for two different types of optical sight in a single rail.

Abstract: The invention provides a mounting apparatus for releasably securing an accessory to a firearm. The mounting apparatus includes a coupler connectable to the accessory and having a tapered plug with a slot that extends inward from an outer wall of the plug. The apparatus further includes a support base with an internal cavity extending between opposed side walls of the base. The support base has an aperture with an internal wall arrangement including an orifice wherein the aperture is dimensioned for reception of the plug. A keeper is slidably positioned within the internal cavity and has a finger that extends through the orifice and into the slot to retain the plug within the aperture.

Abstract: A bipod operable for attachment to a bipod mounting plate having at least one transverse slot on a lower surface thereof, the upper surface of the bipod mounting plate including attachment means operable for attaching the mounting plate to a firearm or optical device. The bipod includes a bipod mounting bracket operable for rigidly and adjustably attaching the bipod to the bipod mounting plate. The bipod further includes a pair of telescopically extendable legs pivotally attached to the mounting bracket. The pivotal attachment means is operable for manually adjusting the angle of orientation of the legs with respect to the mounting bracket between zero degrees and a preset angle of less than 180 degrees and most preferably about 90 degrees. The pivotal attachment means further includes beveled detents that enable the silent locking of the legs into the desired angular orientation.

Abstract: An accessory mounting device for use with firearms is disclosed. The mounting device includes a first pin having a first head and a second pin having a second head, wherein the second head projects radially beyond the second pin only on one side of the second pin. The device further includes first and second apertures to receive the first and second pins, respectively, and a first undercut associated with the first aperture, wherein the first undercut is compatible with the first head and a second undercut associated with the second aperture, wherein the second undercut is compatible with the second head. Also included is a spring-loaded locking device attached to the second pin and a handle associated with the spring-loaded locking device. The handle moves the second pin against the force of the spring axially in the direction of the second head so that when the second pin is turned by the handle, the second head pushes against the force of the spring on the second undercut.

Abstract: An improved clamping device for a weapon accessory rail of a type having an elongate mounting structure of generally T-shaped cross-section. The rail mounting structure may be of a type including a mounting surface and first and second inclined proximal surfaces on opposite sides of the mounting surface and first and second inclined distal surfaces adjacent the first and second proximal surfaces, respectively. The clamping device includes a mounting shoe with a first inward surface for engaging the mounting surface and a second inward surface for engaging the second distal surface. The mounting shoe has an outward facing surface opposite the first inward facing surface for attaching an accessory device. A cam lever pivotally movable between first and second positions has a rotary cam surface engaging a bearing member. The bearing member is movable between a clamped position and unclamped position in response to movement of the cam lever to the first and second positions, respectively.

Abstract: A rail clamp mount that may be quickly and easily firmly secured to a rail, such as a rail carried by a gun, and that may be quickly and easily released from the rail. A preferred embodiment comprises a mount base including a first rail-engaging surface; a generally U-shaped, somewhat elastic clamping member carried by the mount base and including two second rail-engaging surfaces at the ends of the legs of the U, and a third second rail-engaging surface at the end of the center section of the clamping member between the legs of the U, the second rail-engaging surfaces being opposed to and transversely spaced from the first rail-engaging surface; a cam mechanism mounting the clamping member to the mount base for imparting transverse movement to the clamping member when actuated; and an actuator for the cam mechanism including a throw handle.