Abstract: The present invention is a modular stock system for rifles. The system replaces the rifle's buffer tube with a modified one containing a mount for a constant cheek weld and a rail track for adjustment. A stock module then mounts on the replacement buffer tube. The stock module is interchangeable depending on the user's needs. Various configurations of the stock module are discussed, including adjustable stocks, fixed stocks, and specialized stocks. The stock module may be made even further modular by the addition of rail system.

Abstract: An M-4 firearm having a lower receiver assembly and an upper receiver assembly. The upper receiver assembly is connected to the lower receiver assembly. The lower receiver assembly has a fire control assembly. The upper receiver assembly has a barrel and a hand guard. The hand guard has a venting features for allowing cooling air to pass therethrough. The hand guard has a heat shield mounted therein. The hand guard has at least one peripheral device mounting rail. The hand guard has an upper portion and a removable lower portion. The removable lower portion has at least one peripheral device mounting rail. The removable lower portion may be removed and replaced with a different second removable lower portion without the removal of fasteners.

Abstract: A detachable gun barrel assembly having an adapter for threaded engagement with the receiver and a barrel dimensioned for affixation to the adapter. The adapter has a mating end section which threadedly engages the receiver V-threads and a receiving end section having square internal threads. The mating end section has a limit flange at its innermost end. The receiving end section has a larger internal diameter to form an internal flange or stop between sections. The barrel has an alignment section which inserts into the mating end section and contacts the limit flange. A securing section of the barrel is provided with a square external thread to engage the receiving end section and contact the internal flange. The elongated barrel is provided with an external shoulder which contacts the receiving end section upon affixation of barrel to adapter thereby providing a number of stops to maintain barrel alignment.

Abstract: An attachment for a firearm having a barrel with a barrel nut mechanism located around an aft portion of said barrel. The attachment includes a shield or supplemental mechanism which is positioned close to the barrel. An attachment mechanism having a first and second claw diametrically opposed to each other, are positioned to be accepted by the barrel nut mechanism secured to the barrel. In the preferred embodiment, the attachment completely encircles the barrel using an upper portion and a lower portion which is swivelly connected to said attachment mechanism at a first end and a locking mechanism securable to the upper portion of the barrel handguard.

Abstract: An accessory mount for a firearm having a longitudinal barrel, a first support and a second support forwardly of the first support.

Abstract: A spring, which may be either a coil spring or a leaf spring, provides an adjustable stabilization force to the barrel of a rifle to tune out harmonic vibrations resulting from firing a particular bullet from the weapon. This tuning enables the scatter pattern for any bullet fired from any rifle to be significantly tightened from the resultant improved accuracy of the weapon.

Abstract: The subject matter of the invention is a rifle (1) comprising a stock (40), a forearm (30) and a barrel (20), the barrel (20) being releasably connectable to the stock (40) and said barrel (20) being fastenable to said stock (40) by bringing the forearm (30) into locking engagement with said stock (40) by means of a locking device (50), the locking device (50) being spring-loaded and the spring (60) being compressed by an actuation member (57) for the purpose of unlocking.

Abstract: A method of machining a chamber in a gun barrel by EDM, by using a conductive electrode which defines the desired shape and dimensions of the chamber. A series of electrodes of progressively increasing diameter may be used. An electrode for an EDM barrel chambering process is an axisymmetrical conductive member, and may include a body, an angular shoulder, a neck, throat area, and a tapered lead angle portion into the bore along with other features of a selected cartridge chamber.

Abstract: The present invention features devices for mounting accessories to a weapon and more particularly mounting devices that allow one or more accessories to be secured to the weapon, such as a firearm and crossbow, at the same time using the same mounting device. In more particular embodiments, one of a scent generating device, a weapon hanger, a recording device and/or an illumination device, such as a flashlight is secured to the device and thus to the weapon. The present invention also features methods related thereto including methods for masking the scent of a hunter and hunting.

Abstract: An accessory mount for a firearm, and a method for installing the accessory mount to the firearm.

Abstract: A firearm (10) constructed in accordance with the principles of a preferred embodiment of the present invention and configured for firing large caliber ammunition at precisely defined targets at long range is disclosed. The firearm (10) broadly includes a stock (12), a receiver (14) supported in the stock (12), a barrel (14a) threadably coupled to the receiver (14), hardware (16) associated with the receiver (14) for firing ammunition through the barrel (14a), a scope (18), and a scope-mounting base (20) coupled to the receiver (14) for mounting the scope (18) thereto in the line of sight. The base (20) includes a mount (24) adapted to be fixed to the receiver (14), an adjustable recoil lug (26) for anchoring the base (20) relative to the receiver (14), and a pair of ring clamps (28 and 30) for coupling the scope (18) to the base (20).

Abstract: A handguard system for use on a rifle having a barrel and a receiver, the hand guard system includes a barrel nut having an inner surface with a threaded portion adapted to threadably engage the receiver for securing the barrel to the receiver and an outer surface, and a tubular handguard having an end. The tubular handguard is receivable about the barrel and is received about the barrel nut, engaging the outer surface thereof.

Abstract: A handguard system for use on a rifle having a barrel attached to a receiver by a barrel nut, including an adapter ring and a tubular handguard. The adapter ring is receivable about a barrel nut and changeable between a rotatable configuration where it is rotatably about the barrel nut, and a fixed configuration wherein it is fixed to the barrel nut. The tubular handguard is receivable about a barrel and has an end received about the adapter ring with only the end of the tubular handguard fixedly secured to the adapter ring.

Abstract: A laser module adapted to being joined to a modular sleeve upper handguard piece top longitudinal gap. The laser module has two, parallel elongated submodules positioned so that an elongated, generally rectangular space is formed between the submodules. The laser module elongated space fits onto the longitudinal gap and the submodules fit along the upper handguard sides in the shallow upper channels. An upper handguard interface element is attached centrally over the laser module top. Each submodule has means for azimuth and height adjustments.

Abstract: A locking hinge especially used in a folding shoulder rest for paintball guns. The locking hinge comprises a first hinge plate and a second hinge plate in relative rotation. The first hinge plate has a hinge joint axis, a plurality of symmetric mounting holes, and a counter bore for receiving the locking mechanism. The counter bore in the first hinge plate contains a spring and a locking cylinder. The locking cylinder has a taper on the end directed toward the second hinge plate. The second hinge plate has a relative hinge joint axis, a plurality of tapered circular cavities or notches, and a means for symmetric mounting. The locking mechanism sufficiently aligns with the tapered circular cavities or notches at plurality of predetermined positions thereby preventing rotation of the hinge plates. A minor misalignment between the locking mechanism and tapered circular cavities further provide rigid locking of the hinge plates.

Abstract: A system and method for manufacturing a mid-grip high-powered pistol by modifying an existing rifle receiver, wherein a portion of the original trigger is removed, a new trigger is added in a position forward of the partially removed original trigger, and the new trigger is coupled to the remaining portion of the original trigger via an extension, wherein a recoil lug is added to the rifle receiver to handle the recoil, a plurality of different length barrels can be coupled to the new pistol, and a pivot pin diameter and location of a forearm lug prevent creation of an illegal rifle.

Abstract: A Swan universal receiver sleeve attached to the top of a firearm upper receiver and extended forward above the firearm barrel to a position just short of the firearm front sight. The underside of the rear portion of the sleeve is fixedly attached to the receiver top. The underside of the forward portion of the sleeve has an upper handguard piece attached thereto. A bottom handguard piece is fitted about the bottom of the gun barrel and is attached to the upper handguard piece. The handguard pieces are not physically connected in any way to the gun barrel. The sleeve is self supported by the connection of the rear portion underside to the receiver top. A special yoke is inserted about the barrel nut of the firearm to which the modular sleeve is attached. The special yoke reinforces the modular sleeve while keeping the firearm barrel free floating.

Abstract: A Swan universal receiver sleeve attached to the top of a firearm upper receiver and extended forward above the firearm barrel to a position just short of the firearm front sight. The underside of the rear portion of the sleeve is fixedly attached to the receiver top. The underside of the forward portion of the sleeve has an upper handguard piece attached thereto. A bottom handguard piece is fitted about the bottom of the gun barrel and is attached to the upper handguard piece. The handguard pieces are not physically connected in any way to the gun barrel. The sleeve is self supported by the connection of the rear portion underside to the receiver top.

Abstract: A lightweight weapon housing system is disclosed for a self-loading firearm. The weapon housing includes an outer and an inner housing. A wall structure in the weapon housing reinforces the magazine chamber and transmits the transverse forces arising in the magazine into an inner housing, which suffers any resulting deformation and which can be exchanged in a simple manner should deformation result.

Abstract: Firearm and an anchoring elements for use with a firearm are disclosed. A disclosed anchoring element includes a connecting part which is dimensioned to be connected to a first barrel. It also includes a first mounting guide which is adapted to releasably secure a second barrel to determine a relative position of the second barrel with respect to the first barrel. The anchoring element further includes a second mounting guide structured to releasably secure a second module to the first barrel to determine a relative position of the second module with respect to the first barrel.

Abstract: A flex-plate adapter for a takedown firearm has front and rear sections. The rear section includes adjustment screws to change the gap between the front and rear sections. Guide pins are included for assuring proper alignment between the front and rear sections. The adjustable gap between the front and rear sections of the flex-plate adapter provides compensation for thread wear. A magazine cutoff provides a manual cutoff for retaining ammunition in the magazine whether the rifle is assembled or disassembled. A cutoff lock prevents the accidental movement of the magazine cutoff.

Abstract: A modular firearm according to the present invention includes a breach face module receiver adapted for receiving a fully assembled breach face module. The breach face module includes a breach face and an extractor arm precisely located relative to the breach face for engaging a cartridge rim and ejecting the cartridge from the firearm. The extractor arm is pivotally mounted in the breach face module and is rotationally biased by an extractor spring to effect cartridge engagement. The location of the extractor arm and the size of the breach face are variable so that the breach face module can be adapted for use with a range of calibers. The exterior dimensions of the breach face module remain constant so that a single breach face module receiver may be used to manufacture firearms of various calibers.

Abstract: A mounting system for a cylindrical object such as a spotting rifle is provided. First and second U-shaped brackets are coupled to a base such as a launching device. Each U-shaped bracket has first and second legs extending from a common base. The two U-shaped brackets are oriented such that the first and second legs of one U-shaped bracket are perpendicular to the first and second legs of the other U-shaped bracket. Each U-shaped bracket slidably receives a sleeve between its first and second legs. Each sleeve is attachable to the bracket's common base such that the position of the sleeve relative to the bracket's common base is adjustable. A locking mechanism is provided with each U-shaped bracket/sleeve combination to lock the sleeve laterally between the first and second legs of the U-shaped bracket. The two sleeves are coaxially aligned.

Abstract: The barrel (2) and the breech (8) are coaxially screw mounted within a tubular casing (9), and therefore said casing (9) not only stands as an interconnection between these elements, but reinforces the same substantially, allowing the use of more tilan one gunpowder pellet (16), a throttling (13) being established between the two casing (9) are at which the nipple assembly (15) is located on said casing, being thus laterally arranged. The rifle may thus, with the classic lateral nipple assembly, be easily taken down to be cleaned. lt is moreover fitted with an additional safety (36) which allows the cocked position with safety to be fall silently changed to the cocked position without safety, which is particularly appropriate when the rifle is used as a hunting weapon.

Abstract: An interchangeable upper receiver assembly for use with a hand held weapon and the interchangeable upper receiver assembly in combination with the hand held weapon, where the interchangeable upper receiver assembly includes an integral, unitary breech block and barrel that is operably removably couplable to the lower receiver assembly of the hand held weapon in an engaged disposition. A bolt assembly is slidably disposed within a bolt recess defined in the receiver breech block and barrel. The bolt includes a firing pin slidably disposed therein, the firing pin being selectively actuatable by the trigger assembly when the receiver is in the engaged disposition.

Abstract: A pistol includes a frame; a slide mounted on the frame for forward and rearward motions relative to the frame to assume a forward, basic position and a rearward, pulled-back position; a firing pin mounted in the slide for forward and rearward motions relative to the slide; a firing pin catch affixed to the firing pin and movable therewith as a rigid unit; a firing pin spring mounted in the slide and urging the firing pin in a forward direction; a trigger movably supported in the frame; a trigger rail coupled to the trigger for executing a triggering motion when the trigger is pulled; and a sear for operatively connecting the trigger rail with the firing pin catch such that during forward motion of the slide the sear arrests and holds the firing pin catch whereby the firing pin spring is armed and that upon pulling the trigger, the sear is moved away from the firing pin catch by the trigger rail for allowing the firing pin to accelerate forwardly as urged by the firing pin spring.

Abstract: A pistol includes a frame; a slide reciprocating on the frame between a forward position and a pulled-back position; a firing pin mounted in the slide for motions relative to the slide; a firing pin catch affixed to the firing pin; a firing pin spring mounted in the slide and urging the firing pin forwardly; a trigger supported in the frame; a trigger rail coupled to the trigger for executing a triggering motion when the trigger is pulled; and a sear for connecting the trigger rail with the firing pin catch such that during forward motion of the slide the sear arrests and holds the firing pin catch thus arming the firing pin spring and that upon pulling the trigger, the sear is moved away from the firing pin catch by the trigger rail for allowing the firing pin to accelerate forwardly. A manually operable disassembly member which has an open and a closed position, is movable into a pulled-out state for allowing the slide to be taken off the frame.

Abstract: The pistol comprises a frame. A trigger is mounted in the frame and is pivotable between a release position and a firing position and spring urged into the release position. The frame comprises a grip portion with a magazine well in which a magazine is removably inserted. A trigger bar is pivotally attached to the trigger and spring urged upwardly. The trigger bar has an abutment member at its rear end which coacts with a sear member that is movably mounted in the frame. A safety member is mounted on the grip portion and is movable between two positions. At its upper end the safety member has a catch for engaging the trigger bar. A second spring urges the safety member into its first position in which the catch pulls the trigger bar down out of engagement with the sear member. The safety member has an abutment face which is engaged by a part of the magazine when the latter is inserted. The part pushes the safety member into its second position in which the catch is out of engagement with the trigger bar.

Abstract: A multipurpose weapon having a self-loading large-caliber self-loading rifle module or section and an assault weapon module or section attached to the front portion of the large caliber rifle is provided. A first trigger assembly of the large-caliber rifle is positioned for operation by a trigger hand of the user of the weapon, while a second trigger assembly of the assault weapon module is configured for operation by the non-trigger hand of the user. Alternatively, the assault weapon section or module can be equipped with a trigger that is selectively operable to fire either the assault weapon module or the large-caliber rifle module. Additionally, a detachable secondary module comprising a grip module which includes a grip and a trigger can alternatively be attached to the large-caliber module.