Abstract: A modular automatic or semiautomatic rifle. The rifle has a lower receiver assembly having a fire control assembly for firing the rifle. An upper receiver assembly is provided with a frame and a bolt carrier assembly configured for firing bullets of a predetermined caliber. The lower receiver has a mating interface configured for operably joining the lower receiver assembly to the upper receiver assembly, and for operably joining the lower receiver assembly to another upper receiver assembly different from the upper receiver assembly configured for firing bullets of the predetermined caliber. The other upper receiver assembly has a different frame and different bolt carrier assembly configured for firing bullets of a different predetermined caliber.

Abstract: A firearm barrel nut assembly including barrel nut, generally cylindrical in shape with a threaded central bore, and an externally threaded locknut which is used in conjunction with the barrel nut to secure a barrel to a firearm upper receiver. The barrel nut has an integral bushing on its exterior constructed to support either the gas tube or piston of the host firearm's operating system. The barrel nut is configured so that it may be independently and non-rotationally held within a vice or other fixture during installation of the barrel and while the locknut is tightened to a preset torque to hold the barrel in place while the barrel nut is independent of the torque applied to the locknut to properly secure the barrel to the upper receiver.

Abstract: The electromechanical trigger guard protective enclosure is a safety device intended to prevent access to the trigger of any firearm with an accessory rail. The present invention has a keypad, which activates the drive mechanism. The drive mechanism either covers the trigger or slides open revealing the trigger for use. The protective enclosure is affixed to the accessory rail on a gun, ensuring that it is able to be used at all times, preventing any inability to properly enclose the trigger. This protective sheath allows for the weapon to remain loaded and ready to fire at all times, aiding greatly in times of self-defense.

Abstract: A self-contained magazine intended for a firearm, including a main housing configured to receive a plurality of cartridges and having an open upper end through which the cartridges are loaded and unloaded, a follower arranged relative to the main housing and able to slide in a longitudinal axial direction along the main housing, a spring urging the follower toward the upper end so as to push the cartridges toward the upper end, a secondary housing fixed and preferably removably relative to a substantially planar lower end of the main housing, and an indicator device arranged at least partially inside the secondary housing to indicate the number of cartridges contained in the main housing.

Abstract: The technology disclosed herein can include a motor unit having a motor with a motor gear to rotate a drive shaft and a drive gear. A manual input shaft can also be configured to transmit rotation to the drive shaft. The motor can have a central axis that forms an angle of less than 90 degrees with a plane substantially defined by an outer surface of a gear box coupled to the motor. A mounting bracket is configured to allow mechanical communication between the motor unit and an internal ring gear. The internal ring gear can be mounted to a vehicle and a turret can be pivotably disposed within the internal ring gear. A motor unit is mounted on the turret and a drive gear is rotatably mounted on the motor unit and in direct engagement with the internal ring gear.

Abstract: An unmanned turret having a turret ring gear and first and second electrical force-producing devices with the unmanned turret being rotatably mounted to a vehicle chassis, the turret drive mechanism including at least one ring gear independent of the turret ring gear, at least one manually-operable input component rotatably coupled to the at least one ring gear, the at least one input component accessible within the vehicle chassis, and at least one output component mechanically coupled to at least one of the first and second electrical force-producing devices of the unmanned turret to cause rotation of the at least one of the first and second electrical force-producing device. Another turret drive mechanism and an unmanned turret are also disclosed.

Abstract: A barrel assembly for use in a semiautomatic firearm, including a barrel and a takedown lever. A rear portion of the barrel includes a follower lug and a rear lug extending from an underside of the rear portion. The follower lug further includes a follower notch. A pin of the takedown lever includes a notch with a vertical face configured to contact a vertical face of the follower notch when the firearm is in the locked position. The rear lug is configured to be supported by a portion of a locking block of the firearm prior to firing and during a portion of the recoil period. The modifications to the barrel assembly result in increased dwell time and accuracy of the firearm.

Abstract: A fully automatic handgun has a barrel and a blowback, open bolt firing breech mechanism, which is mounted in a displaceable manner on a guide. The breech mechanism has a slide with a substantially U-shaped bracket, on which a breechblock is arranged. The slide is displaceably mounted on the guide and on the barrel.

Abstract: Systems for a firearm are provided to increase safety, reduce complexity, and improve precision of the weapon. In general, examples of the systems including a safe axis firing pin that prevents unintended discharge are described herein, where the firing pin is not aligned with the primer of a chambered cartridge until the user intends to fire the firearm. Embodiments of the system are capable of modular installation and generally include a user-actuated trigger configured to displace the firing pin from a safe axis to a firing axis, by rotation, translation, or a combination thereof. Additional features are provided to prevent displacement of the firing pin by input other than the trigger, e.g., if the firearm is dropped. In another aspect, examples of the systems described herein include a barrel interfacing a slide where the barrel and slide include features to centrally align the barrel as the slide completes a cycle.

Abstract: The recoil compensator uses a two piece design that allows for convenient indexing of the vent channels relative to the barrel, while securely mounting the compensator to the threaded end of a barrel. The recoil compensator consists of a muzzle brake and a jam nut. The muzzle brake turns onto the threaded end of the barrel and the jam nut is operatively threaded onto the body of the muzzle brake so that it can be tightened about the muzzle brake and the barrel to securely lock the muzzle brake to the barrel once properly indexed relative to the barrel. The jam nut has an annular flange that overlies the body of the muzzle brake to provide a clean aesthetic appearance of the recoil compensator.

Abstract: A significantly simplified sight unit for a mortar is provided consisting of a gauge tool for boresight procedures containing a frame with two legs, each containing a level secured to the frame by a securing bracket. A plurality of C-brackets and screw assemblies stabilize and help further secure the levels to the frame.

Abstract: The proposed invention relates to small arms, specifically to charging devices for charging magazines with cartridges and to meters for cartridges in box magazines. The technical result consists in providing a universal charging device and meter for cartridges in box magazines which makes it possible to achieve rapid charging and discharging of cartridges to and from said magazines and visual and tactile monitoring of the number of said cartridges in box magazines which have been withdrawn from and inserted in a weapon. The device has a minimal weight and can easily be built into any box magazine of an automatic machine gun or a pistol having a spring-loaded cartridge feed mechanism.

Abstract: The present invention is for a firearm sound suppressor which is attached to the barrel of a firearm to reduce the noise and flash generated by the firearm. The firearm sound suppressor improves the dissipation of heat and provides a breach head on the end thereof for use as a ramming and breaching instrument.

Abstract: Systems and methods for mounting a barrel to a firearm are disclosed herein. The firearm may include a barrel, an upper receiver, a hand guard assembly, a lower receiver, a pistol grip, a buttstock, and a trigger. A barrel extension may include internal threads, mounting protrusions, mounting apertures, an elongated front barrel extension portion, an elongated rear barrel extension portion, and a barrel extension mounting flange. The barrel extension may be sandwiched and secured in between the upper receiver and the hand guard assembly via clamping screws.

Abstract: A warhead fuse mechanism is used to prevent an accidental explosive event of a warhead by separating the booster lead into a plurality of booster lead segments, with each of the individual booster lead segments having a diameter less than the failure diameter of the booster lead explosive. A separating device separates the booster lead segments from each other to maintain the failure diameter until detonation is desired.

Abstract: Semi-automatic features can be eliminated from a weapon that originally had a bolt carrier that was reciprocated by a gas tube communicating with a barrel. After eliminating the gas tube, a carriage and pushing member can be taken from a kit and installed on the weapon. The carriage is reciprocatably mounted at the barrel forward of the bolt carrier, with the pushing member connecting between the carriage and the bolt carrier. The carriage can be manually reciprocated to reciprocate the push member and the bolt carrier.

Abstract: A rifle stock assembly adapted to receive and support a bolt action rifle barreled receiver is disclosed. The assembly includes a rifle stock/chassis having an elongated recess and a cage removably fastened to the chassis in the recess to receive a bolt action rifle receiver therein. The assembly may also have a pair of magazine collets fastened to the bottom of the forward portion of the chassis defining a magazine well beneath the cage. Cages having different internal surface shapes may be utilized to accommodate different barreled receivers in the same rifle stock/chassis. Different magazine collets may also be utilized to accommodate different caliber magazines used with the different barreled receivers.

Abstract: A munitions disabling device is disposed in a storage container proximate the muzzle of a single-use weapon. A projectile having a fused warhead is loaded in the weapon prior to storing the weapon. If an unplanned stimulus launches the projectile while the weapon is in the storage container, the projectile will impact or strike the disabling device. The disabling device prevents detonation or explosion of the warhead.

Abstract: The invention described herein improves the trigger feel and reset perception using three primary alterations. First, the addition of a spring that presses against the trigger bar, further increasing the reset action. Second, the addition of a pin or screw to a specific location on the trigger bar, increasing the deformation of the trigger bar when pushed to the side by the slide. The result is the trigger bar holds a greater force, increasing the tactility of the reset. Third, the use of a specific sear shape, altering the camming action of the sear, and thus how the sear interacts with the trigger bar and firing pin. Each of these inventions alone results in an improved trigger feel and action. Together the result is a gun with greatly improved trigger characteristics.

Abstract: A sight aid including a supplementary sight alignment indicator having a projection plane and a projection device adapted to project a supplementary sight alignment indicator and at least one reference point on the projection plane, the supplementary sight alignment indicator is axially-centered with respect to the sight alignment indicator and spaced apart therefrom on the optical axis for forming a composite image with the image of the sight alignment indicator, the target image being viewable together by the user by means of the ocular lens and the projection plane is disposed at a distance from the sight alignment indicator. An adaptor secures the supplementary sight alignment indicator to a portion of the projectile device or the housing.