Abstract: A suppressor for a firearm includes a casing that defines an axis, and a baffle is in the casing. The baffle has upstream and downstream surfaces and a frustoconical surface between the upstream and downstream surfaces. The baffle defines a fluid pathway through the upstream, downstream, and frustoconical surfaces along the axis. An annular chamber is located between the frustoconical surface and the casing. A first contoured wall extends upstream a first height from the upstream surface, and the first contoured wall defines a perimeter around a first damping well in the upstream surface. A second contoured wall extends upstream a second height from the upstream surface, and the second contoured wall defines a perimeter around a second damping well in the upstream surface. The first height of the first contoured wall is larger than the second height of the second contoured wall.

Abstract: Quick take-down firearms and methods of using quick-take down firearms. The quick-take down includes an upper receiver coupling and a barrel coupling. The quick take-down can be unlocked by sliding a sliding lock collar in a translational motion to an unlocked position to release locking elements from a locked configuration. In the unlocked position, a barrel and handguard may be installed onto and removed from the upper receiver of the firearm. Releasing the sliding lock collar returns it to a locked position, securing the barrel and handguard to the upper receiver.

Abstract: A modernized firearm including interchangeable features.

Abstract: Shotshell type ammunition includes a hull, a sabot disposed within the hull, and at least one projectile disposed within the sabot. The hull has a rimless first end that includes a primer for firing the ammunition. The hull also has a seat surface for seating the hull against a complementary seat surface in a firing chamber of a firearm. The seat surface is located a distance from an outer end surface of the hull at the rimless first end. The hull further includes an outer cylindrical side surface extending from the rimless first end of the hull to the seat surface of the hull. Methods of fabricating such ammunition includes forming such a hull, providing one or more projectiles within a sabot, and disposing the sabot with the one or more projectiles therein at least partially into the hull. Shotgun type firearms are configured for firing such ammunition.

Abstract: An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearm's gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pin's annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end. The extractor recess is constructed so that the face of the bolt is round and the adjacent lugs fully supported. The extractor engages approximately 17% more of a seated ammunition cartridge's rim as compared to the prior art AR15/M16 extractor. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

Abstract: Disclosed herein is a modified upper receiver assembly and method of assembly, which in one form is operatively configured to be fitted to a conventional lower receiver of a rifle so the user can use their normal lower receiver having a pistol grip, trigger assembly and butt stock. The upper receiver is configured to provide a blowback bolt assembly of larger mass than would be possible with similar density materials of a bolt fitted within an upper receiver conventionally made for said lower receiver.

Abstract: The disclosure is directed at a method and system for improving situational awareness and accuracy of a user with a firearm. The system includes a blank firing laser attachment which is mounted to an end of the firearm and emits a laser when the trigger is pulled.

Abstract: Weapons, weapon housing and methods of producing such weapons and weapon housings are disclosed. An example weapon housing for use with a firearm includes at least two housing shells. Each of the housing shells comprises at least one positioning recess. The example weapon housing also includes at least one connection block comprising connecting pins. On an assembly plane of the connection block, the housing shells are to be positioned and aligned on the connecting pins via the respective positioning recess to enable forces that are to act in or against a direction of fire to be absorbed by surfaces of at least one of the positioning recesses or one or more of the connecting pins.

Abstract: A mounting device for mounting an accessory to a rail of a weapon includes a base portion and first and second side portions. One side portion is movable to grip the rail. An elongated connecting member has a first end engaging the first side portion and a second end connected to a camming device. The camming device engages the second side portion and pulls the elongated connecting member to move the side portions to an engaged position. A locking mechanism locks the camming device in the closed position. The locking mechanism includes a locking element that is movable between a lock position and an unlock position. The locking element has an engagement portion that selectively engages the camming device when the locking element is in the lock position thereby locking the camming device in the closed position.

Abstract: Shotshell type ammunition includes a hull, a sabot disposed within the hull, and at least one projectile disposed within the sabot. The hull has a rimless first end that includes a primer for firing the ammunition. The hull also has a seat surface for seating the hull against a complementary seat surface in a firing chamber of a firearm. The seat surface is located a distance from an outer end surface of the hull at the rimless first end. The hull further includes an outer cylindrical side surface extending from the rimless first end of the hull to the seat surface of the hull. Methods of fabricating such ammunition includes forming such a hull, providing one or more projectiles within a sabot, and disposing the sabot with the one or more projectiles therein at least partially into the hull. Shotgun type firearms are configured for firing such ammunition.

Abstract: The invention comprises improved designs in a recoil control device comprising a bolt and slider for use in a variety of firearms. In one embodiment, the bolt and slider are articulated so that the displacement of the bolt results in a force component accompanying the slider as it moves along a slider path that traverses a line formed by a linear firing axis of the barrel of the firearm. The slider can have additional structural and functional features, including stabilizing features, vibrational damping elements, elements of the fire control mechanism, and devices to manage the peak impulse of the slider movement as it contacts a base or terminus point.

Abstract: An upper receiver for a weapon, the upper receiver having a plurality channels each being oriented in a first direction and wherein each of the plurality of channels intersect an elongated channel extending in a second direction; a modular rail having a pair of securement features configured to be slidably received within a pair of the plurality of channels such that modular rail can slide in the pair of the plurality of channels in the first direction until the pair of features can slide within the elongated channel in the second direction.

Abstract: An automatically-reloadable, remotely-operated weapon system may include an operator station located distant from a weapon station. The weapon station may include an externally-powered firearm, a firearm mover for adjusting an azimuth and an angle of inclination of the firearm, and an ammunition storage and transport system for automatically moving ammunition to and from the firearm. From the operator station, a user may remotely control all aspects of firearm operation and ammunition reloading.

Abstract: An automatic rifle bolt carrier with a fluted boss for the AR15/M16 family of firearms has been provided. The rear of the bolt carrier has been provided with a boss having bearing surfaces which are in operational contact with the interior of the host firearm's upper receiver to prevent the carrier from tilting while it is reciprocating during normal operation. The boss and rearward end of the bolt carrier are provided with flutes which allow water to flow between the buffer tube and upper receiver while the bolt carrier is reciprocating during normal operation, enabling a properly equipped firearm to be used during over the beach operations. The bolt carrier also includes a semi-circular relief cut about the top of its backmost end which is perpendicular to the axis of the bolt carrier.

Abstract: A method for rapidly firing a semi-automatic firing unit (22) having a trigger (24), a receiver (21) and a barrel (23). The firing unit (22) is placed in a handle (20) so as to enable only reciprocating linear movement along a constrained linear path (P). The user grasps the handle (20) and places their trigger finger (74) firmly on a finger rest (70). In use, the user generates a forward activation force (200) that urges the firing unit (22) forwardly so that the trigger (24) collides with the stabilized finger (74), stimulating the first round of ammunition in the receiver (21). A recoil force (202) from the discharging ammunition pushes the firing unit (22) rearwardly so that the trigger (24) separates from the stabilized finger (74). The intensity of the forward activation force (200) can be varied by the user on-the-fly to proportionally change the firing tempo.

Abstract: An automatic firearm that includes a unitary portion including a human interface and a barrel defining a longitudinal dimension. A slidable portion is attached to the unitary portion so as to permit the slidable portion to slide in the longitudinal dimension. The slidable portion includes at least a portion of a firing chamber. In addition, a lock is adapted to selectably fix the slidable portion relative to the unitary portion. Also, a chamber attached to the unitary portion and an inertial member permitted to move inside the chamber and urged into a first position, the inertial member adapted to translate into a second position, displaced from said first position by at least 0.1 cm, upon firing of the firearm, in which second position the inertial member begins to change the position of the lock, thereby permitting the moveable portion to move relative to the unitary portion.

Abstract: A bolt assembly for a rifle is configured for recoil blowback operation and cooperation with a round of ammunition dispensed from a magazine into a firing chamber of the rifle. An extractor disposed in a lower, forward portion of the bolt assembly and an ejector disposed in an upper, forward portion of the bolt assembly further cooperate with the round of ammunition to extract a spent cartridge of the round of ammunition from the firing chamber and eject the spent cartridge downward from the firing chamber.

Abstract: A firearm has a body formed of a unitary first shell and a unitary second shell. Each shell defines an open cavity and has a peripheral rim. The rims of the shells are connected together so that the cavities define a receiver chamber. A bolt reciprocates within the receiver chamber, and a barrel connected to the shells has a chamber positioned for operable engagement by the bolt. The shells may together define a gas tube, and may define a barrel receiving element, each shell having a barrel engagement element. Each shell may have a side panel with flat portions having a limited thickness, and elongated ribs of a greater thickness. The ribs may extend about the periphery of planar side panels, and may extend between the periphery and selected stress elements on the body including a buttstock mounting facility. A bolt handle slot may have opposed rows of spaced apart bolt handle guides in an alternating arrangement.

Abstract: The invention relates to the trigger and firing mechanisms for pistols. The inventive pistol comprises a frame (1), a barrel (2) with a cartridge chamber (3), a cartridge feeding mechanism (4), a fired case removing mechanism and a breech block return spring (12). The breech block (13) is slidable parallel to the barrel axis and comprises a firing mechanism, which consists of a firing spring stop (14), a firing spring (15), a striker (16) having a firing pin tip (17), a cocking notch (18) and rest pads for a firing spring (19) and for a striker spring (20). The breech block (13) includes a mechanism for sinking the firing pin tip (17) in a position, which makes possible the chambering of a cartridge, said mechanism having a striker spring (21), the force of which in a precompressed condition is greater than the precompressed force of the firing spring (15). The striker spring stop (22) is installed in the breech block (13) for fixing the precompressed force of the striker spring (21).

Abstract: A method and apparatus employing an array of spaced detectors and a detection circuit to detect disturbance of first and second conductors and provide signals to a computer system to determine both the presence of the intruder and the direction of travel of the intruder. The velocity of the intruder's travel may also be determined. When used with a destruction device to destroy an intruder such as an explosive shell, the lob time and the killing distance may also be calculated and used to fire the shell and to explode it at a position to destroy the intruder. Often the intruder is an armored vehicle or a tank. The conductors may be spaced in an array that has the appearance of a spider web. The conductors may be light weight conductive elastomeric conductors.

Abstract: A switching assembly that operatively cooperates with the triggering mechanism of a firearm, such as a rocket launcher, is disclosed. The switching assembly allows for an adjustable trigger linear travel of about 0.4″ within an accuracy of 0.01 inches, while at the same time prevents any over-travel of the switch activator from damaging a depressible switch that is operatively interconnected to firing of the rocket from the launcher.

Abstract: A method and apparatus for injecting a liquid through a liquid passage cocting a liquid chamber to an outlet in the vicinity of the entrance of a gun bore. The liquid is forced through the passage by a piston movable in the liquid chamber in response to the pressure of a gas generated in a propellant chamber by combustion of a propellant for propelling a projectile down the bore. Two pistons and two liquid chambers may be arranged opposite to each other in a common plane with the propellant chamber and the outlets of the liquid passages may be located substantially opposite to each other in a wall of the bore. Each liquid passage may be arranged to inject the liquid in a tangential direction relative to the longitudinal axis of the bore so that centrifugal forces spread the liquid as a film around the circumference of the bore. Valves may be provided to close the respective liquid passages in the absence of pressure in the liquid chambers.

Abstract: A child resistant quick release firearm safety and security device wherein the one piece device is inserted into the loading port of a tubular magazine, bottom loading, firearm. The operative position places the safety and security device under pressure from the magazine spring and the firearm is disabled by blocking internal mechanisms. The firearm cannot be loaded either externally through the ejection port or internally from the magazine. Further, the outer surface of the safety and security device substantially fills the loading port to act as both a dust and anti-tamporing cover. The body is shared so as to retain anti-corrosion, agents within the firearm. Removal is by catching the fingernails in a recess on the outer surface of the body and pulling the safety and security device forward toward the magazine tube. Upon being moved forward as far as possible the safety and security device will flip free of the firearm, thereby enabling immediate operation of the firearm.

Abstract: A high performance ballistic grease is used in ammunition and a lubricating process to protect the barrel of a weapon from corrosion and overheating. The ballistic grease, ammunition, and process improve the structural integrity and accuracy of the weapon and are economical, nontoxic, effective, and safe. The preferred ballistic lubricating grease comprises a polyalphaolefin base oil, an amorphous silicon dioxide thickener, and a disodium octaborate tetrahydrate additive.