Abstract: A bolt carrier for a firearm, including lugs on the first end to engage corresponding lugs of a barrel receiver/extension. The bolt carrier includes a cam slot within which a cam pin from a bolt is constrained to travel along a cam slot path during rotational and translational movement of the bolt. The cam slot defines (1) a first cam slot means for constraining motion of the cam pin and the bolt during engagement or disengagement of the lugs of the bolt and the corresponding lugs of the barrel receiver or extension; (2) a second cam slot means for imparting rotational movement to the cam pin and bolt during linear movement of the bolt carrier; and (3) a third cam slot means for constraining motion of the cam pin at an end of a rearward travel of the bolt and bolt carrier during an ejection cycle. The combination of the first, second, and third cam slot means yields an extension of the unlocking by over 10% and a delay of the actual unlock of the bolt by over 5% relative to TDP.
Abstract: A captive recoil spring assembly includes a guide rod surrounded by a coil spring. The spring is captured between a base at one end of the guide rod, and a body at its opposite end. The body is shaped to engage the spring at one or more sectors, leaving one or more remaining sectors free to engage the slide. Use of such a body permits a round wire spring to be used without the need for close dimensional tolerances on the engaging parts.
Abstract: A carrier bolt assembly that is configured to provide an electrical charge to execute the firing of a round of ammunition. The carrier bolt assembly includes a carrier that includes a bore substantially therethrough. Further present is a void adjacent to the bore. A conductive rod is mateably formed to be operably coupled and fixedly secured within the bore and void. The conductive rod includes an outer layer and an inner layer wherein the inner layer is configured to conduct an electric current through the conductive rod. The conductive rod includes a second section contiguous with a first section and further includes a mounting block. The mounting block has a knob formed thereon that is operably coupled with the inner layer of the conductive rod. The carrier bolt assembly further includes an extractor pin that includes a tapered shaped wherein the extractor pin is tapered towards the midsection.
Abstract: A forward assist assembly movable between a standby position and an engaged position in a forward assist bore of a firearm. The assembly includes a button and an single-piece pawl. The single-piece pawl includes an integrally-formed pivot boss supporting the pawl in the button for pivotal movement with respect to the button. The pivot boss also transfers a linear actuation force from the button to the pawl to move the assembly into the engaged position. The single-piece pawl also includes an integrally-formed finger having an engagement surface for engaging a ratchet tooth on the bolt carrier in the engaged position. The single-piece pawl also includes an integrally-formed retaining surface to retain the forward assist assembly in the standby position in the forward assist bore. The single-piece pawl also includes an integrally-formed stop surface to abut a portion of the button in the standby position.
Abstract: Cartridge ammunition (10) including a projectile (12) and a cartridge case (14). The cartridge includes a primer chamber (26) located adjacent a base wall (24) for holding a primer (28), a high pressure chamber (30) for holding a propellant charge (32), an intermediate pressure chamber (34) which surrounds the high pressure chamber, for receiving expanding propellant gases from the high pressure chamber and a low pressure chamber (36) at a rear end of the projectile for receiving expanding propellant gases from the intermediate pressure chamber. The pressure chambers are delimited by walls defining venting hole through which expanding gases can flow. The three pressure chambers provide for controlled release of gas pressure resulting in attenuation of peak gas pressures within the cartridge.
Abstract: A handguard for attachment to a standard AR-pattern firearm upper receiver. A barrel nut has a substantially cylindrical outer surface with an annular groove. A handguard sleeve has an end opening configured to slide over the outer surface of the barrel nut, a channel with a bottom guide surface, and a substantially transverse cross bore positioned to at least partially intersect the end opening to align with the annular groove when the handguard sleeve is positioned on the barrel nut. A pair of wedge members are sized to be received in the channel and connected by at least one wedge fastener configured to adjustably move the wedge members together. When the barrel nut is attached to an upper receiver, the handguard sleeve is attached to the upper receiver by sliding the end opening over the barrel nut and inserting a cross bolt fastener in the cross bore and a portion of the annular groove.
Abstract: The disclosure relates to a mount for attaching an accessory to a firearm including: a body having at least one firearm rail mounting feature; at least one mounting cap removably securable to the body, the at least one mounting cap capable of forming a generally cylindrical passage with a portion of the body; and an auxiliary accessory mount removably securable to the body over the at least one mounting cap, wherein the auxiliary accessory mount includes: an accessory mounting surface configured to receive a firearm accessory; and a mounting feature extending generally perpendicular to the accessory mounting surface, the mounting feature being removably securable to the body.
Abstract: A blast mitigation device having a first inner bag intended to house an explosive and further including a second outer bag to freely contain the first bag. Structural connections between the first and second bag are absent. The first and second bags each include a flexible tubular body made of textile material, provided with at least one openable mouth at one end of the flexible tubular body. The mouth is closable by a zip fastener or zipper and wherein at least the second bag includes a closure belt or strap arranged astride the openable mouth, such that in the assembled and use condition the zip fastener or zipper is wound inside a roll of an end portion of the body of the corresponding bag. The roll is kept in position by the at least one strap.
Abstract: A handgun which vertically displaces a magazine and cocks and snaps a hammer so as to fire a bullet out of the magazine once a trigger handle has been displaced from a first position to a second position. The handgun is made up of a body, a trigger handle, a barrel, and a magazine. A magazine lift mechanism is disposed in the body and functions to vertically displace the magazine upon displacement of the trigger handle. A firing mechanism is disposed in the body, trigger handle, and barrel of the handgun and functions to fire bullets in the magazine upon displacement of the trigger handle. A trigger force mechanism is disposed in the trigger handle and provides a force against which the trigger handle is displaced. The trigger force mechanism returns the trigger handle to the first position when the trigger handle is released from the second position.
Abstract: Exemplary trigger systems reduce trigger slop in polymer-framed pistols. Via use of an oil-impregnated bushing, stacked tolerances are reduced and/or eliminated, leading to improved trigger feel and function.
Abstract: The Vertical Forward Grip is a revolutionary new design, which increases shooter(s) accuracy, providing comfort to the shooter and increasing control of the weapon, while reducing fatigue to the shooter(s) overall stamina. The overall design, ergonomic feel, textured grip placement, ergonomic finger stabilization cradle and the ergonomic thumb-index finger cradle of the vertical forward grip allows the shooter(s) to remain comfortable for long periods, increasing accuracy and control, providing stabilization of the weapon and the design features are different from conventional vertical forward grip(s). Specific design features/improvements are incorporated into the vertical forward grip unlike the design of conventional vertical forward grip(s).
Abstract: A laser target pointer for engaging a gun includes a body, a locating plate, a positioning block, a first fitting element and an adjustable positioning assembly. By providing the adjustable positioning assembly, the laser target pointer can be clamped to a gun with an arbitrary body width. By adjusting a position of the positioning block with respect to the locating plate, the laser target pointer can be positioned to a gun with an arbitrary transverse positioning groove. Thus, the laser target pointer can be properly assembled to any gun body having specifications within a predetermined range, and the position of the laser target pointer can be adjusted on the gun body in the extension direction, such that a single laser target pointer can be applicable to various guns with different brands, types, series or specifications.
Abstract: An illuminated sighting system for providing an illumination at a sight of a firearm includes a power source housed within a compartment of the firearm. The sighting system further includes a light source. The system additionally includes a switch which completes a power circuit that provides power from the power source to the light source when activated, and a conduit configured to transmit light from the light source to the sight of the firearm. The sighting system includes a feature to deactivate the light source when the firearm is holstered or in another stored condition.
Abstract: A fire-control device for a small arm includes an inertial sensor unit for six degrees of freedom, a distance sensor for determining a distance to a target sighted via a sight, and a computation device for determining a target orientation of the small arm from the distance so as to be able to hit the target, the computation device being set up to detect a change in position of the small arm by way of the inertial sensor unit and to correct the target orientation using data from the inertial sensor unit.
Abstract: A firearm includes a receiver for housing a trigger mechanism. The receiver is attached to a firearm barrel, and the receiver includes a bolt carrier that is configured to reciprocate therein. The firearm includes a recoil spring that has a first end and a second end, and the first end interfaces with the bolt carrier. The recoil spring further includes a dampened portion positioned between the first and second ends. The dampened portion has a plurality of dead spring coils. The firearm also includes a spring retainer that is configured to retain the recoil spring within the firearm.
Abstract: Described is a ballistic resistant article, such as a helmet, having a double curved shell in turn has a stack of layers of an oriented anti-ballistic material, the layers having one or more plies and having a plurality of cuts, the ends of which define a central polygon and lobes extending from the polygon. The stack has at least 10 rotationally staggered layers and, for most successive layers, the orientation of the material in the or at least one of the plies is rotationally staggered relative to the orientation of the material in the or at least one of the plies of a successive layer over an angle of 90°±30°.
Abstract: A modular attachment system is disclosed having one or more surfaces designed to compatibly interconnect with a receptacle formed by a grid pattern of a structural support of a gun stock. The grid pattern can be an is a grid pattern, an orthogrid pattern, or a pattern having a combination of both isogrid and orthogrid portions.
Abstract: A floor plate assembly for a firearm magazine for use in automatic and semi-automatic pistols and rifles is designed to occupy a minimal amount of space inside the magazine so that more magazine volume is available for bullets in a minimal magazine size. The magazine floor plate assembly includes a floor plate and a lock plate. The floor plate includes opposing lock plate guides that secure to the base flanges of a magazine housing. The lock plate acts as a spring for snap assembly and is inserted underneath the back edge of the magazine housing over the bottom inside surface of the floor plate, so that the lock plate covers the open magazine back side, while keeping the floor plate tight and without movement.
Abstract: Disclosed herein is a rotary lockup action including a firing mechanism for a firearm. The firearm including a receiver having a cavity therein configured to accept the firing mechanism. The firing mechanism comprising a bolt guide rail fixed to the inner surface of the cavity of the receiver. The firing mechanism also comprises a bolt sliding along a longitudinal axis on the bolt guide rail. Also disclosed is a change handle rotatably mounted to the bolt so as to rotate relative thereto about a vertical axis orthogonal to the longitudinal axis. The charge handle may be mounted to the bolt so as to longitudinally reposition therewith. The charge handle having a surface defining a cut therein aligned with a slot in the bolt when the bolt is in a rearward position; and wherein the surface defining a cut in the charge handle is not aligned with the slot in the bolt when the bolt is in a forward position.
Abstract: Aspects of the disclosure are directed to manufacturing an insert-molded expanding projectile. Aspects of the disclosure include locating a portion of a projectile body within a converging tip mold, the projectile body including a metal jacket extending from a tail portion to a nose portion and surrounding an interior solid core. The metal jacket and nose portion may be tapered in a forward direction to an annular forward edge defining an opening to an undercut interior cavity. Melted polymer may be injected into the converging tip mold and allowed to cool thereby forming a polymer tip having a main portion forward of the opening and a tip retention portion filling the undercut interior cavity and having a shape corresponding to the undercut interior cavity to retain the polymer tip in place.