233results about "Breech mechanisms" patented technology

A firearm comprises a frame which detachably receives a magazine, trigger, and a reciprocating slide moveable between a forward position and rearward removal position. A pivotable takedown lever is selectively engageable with the slide between blocking and non-blocking positions. A magazine disconnect member movably responsive to inserting the magazine into or removing the magazine from the firearm is alterable between a rearward locked position which prevents movement of the trigger to disable the firing mechanism, and a forward unlocked position which allows movement of the trigger and concurrently engages the takedown lever to prevent the takedown lever from leaving the blocking position associated with the ready-to-fire condition of the firearm. The slide is removable from the firearm when the takedown lever is in the non-blocking position. Engagement between the magazine disconnect member and takedown lever prevents full insertion of the magazine if the lever is left in the non-blocking position.

Apparatuses and methods are provided for an optimized direct gas operated firearm. The firearm includes an upper receiver coupled with a lower receiver by a tensioning screw that reduces wobble between the upper and lower receivers. A barrel extension is configured to eliminate misalignment during installation into the upper receiver. A bolt carrier includes a reinforced bolt assembly and a forward-biased dwell weight. The bolt assembly includes an extractor and an extractor pin that simplify disassembly of the firearm. A handguard includes locks that attach to a barrel nut area of the firearm. The locks clamp onto the barrel nut area to align the handguard with the upper receiver. An ambidextrous bolt catch release assembly is operable from either side of the lower receiver. A bolt catch release paddle is disposed at the front of a trigger guard to provide easy access from either side of the lower receiver.

A barrel extension configured to reduce the likelihood of premature bolt failure in automatic and / or semi-automatic style weapons. The barrel extension includes one or more cutouts within a body of the barrel extension. The cutouts are configured to reduce rigidity of the barrel extension proximal to the location of the cutout. As the rigidity around the extractor is lowered, the force on the bolt lugs is more evenly distributed. In one example, the cutouts are in the form of a single oval cutout positioned adjacent an extractor of the bolt.

A bolt catch assembly for a firearm lower receiver having a symmetrical and ambidextrous finger pad in an ergonomic location at the front of the trigger-well which operates the catch and release function of the bolt catch. The finger pad moves in a vertical motion; up to catch the bolt, and down to release the bolt. It may be operated from the left or the right finger pad by a left-hand finger or a right-hand finger. The finger pad is affixed to a vertical link which has a tooth at its top end which engages a groove on the edge of the bolt catch to make the bolt catch pivot. The vertical link includes an elongated slot that accommodates a magazine release shaft.

A pistol-to-rifle conversion kit includes a rifle body that includes a lower receiver, which includes a grip mounting portion, which is rearwardly adjacent to a trigger guard, which is rearwardly adjacent to a magazine well receiving portion, an auxiliary trigger sliding mounted in the rifle body and including an elongate member and a forward trigger interface member, which extends from a forward portion of the elongate member and which is configured to interface with a trigger of a pistol mounted in the rifle body, and a trigger member which extends from the elongate member for directly contacting a shooter's finger, and one or more of the following in any combination thereof: an ambidextrous rifle body quick-lock fastener, an ambidextrous magazine release button, an ambidextrous safety selector, and an assault-rifle-style charging handle.

A receiver blank includes a receiver body with a magazine well and an insert. The insert is located internal to the receiver body, and the insert is manufactured before the receiver body. The insert must be removed from the receiver body to convert the receiver blank to a firearm receiver.

A box magazine fed firearm includes pinch tabs in the receiver of the firearm. In one embodiment, the pinch tabs are opposing pieces of spring steel extending upwardly and inwardly from opposing lateral sides of the receiver. In one embodiment, the pinch tabs are sections of flat spring steel bent into an arcuate shape and secured to the receiver by screws. In one embodiment, tension screws are used to adjust an inward bias of each of the pinch tabs.

The present invention relates to a method for manufacturing a breech block (1) for a cannon, where the method comprises raw material for the breech block (1) being manufactured from at least two different metal powders, a bulk material (20) and a surface capsule (10), so that the surface capsule (10) is arranged so as to enclose bulk material (20), and where the surface capsule (10) is manufactured additively, after a raw material for the breech (1) has been manufactured, the raw material is post-processed for the manufacture of the breech (1). The invention further relates to a breech block and a firing device comprising a breech block.

A firearm comprising an operating group and a buffer system. The operating group may include a recoiling structure configured to translate in a recoil direction from a forward position to a rearward position. The buffer system may include a buffer and an actuator. The buffer may be configured to be compressed in a compression direction from an extended configuration to a compressed configuration. The compression direction may be different from the recoil direction. The actuator may be configured to selectively engage the recoiling structure and the buffer and to cause the buffer to be compressed from the extended configuration to the compressed configuration when the recoiling structure translates from the forward position to the rearward position.

A pistol-to-rifle conversion kit includes a rifle body that includes a lower receiver, which includes a grip mounting portion, which is rearwardly adjacent to a trigger guard, which is rearwardly adjacent to a magazine well receiving portion, an auxiliary trigger sliding mounted in the rifle body and including an elongate member and a forward trigger interface member, which extends from a forward portion of the elongate member and which is configured to interface with a trigger of a pistol mounted in the rifle body, and a trigger member which extends from the elongate member for directly contacting a shooter's finger, and one or more of the following in any combination thereof: an ambidextrous rifle body quick-lock fastener, an ambidextrous magazine release button, an ambidextrous safety selector, and an assault-rifle-style charging handle.

A charging handle assembly for a firearm may include a charging handle body including a handle portion and a shaft portion, a first actuation wing rotatably coupled to the handle portion and configured to rotate about a first rotational axis between a first position and a second position, and a biasing mechanism engaging the first actuation wing and biasing the first actuation wing to the first position. The first actuation wing may include a latch configured to selectively engage an upper receiver assembly of the firearm, and the first actuation wing may have a center of mass disposed along the first rotational axis.

A firearm with a lower receiver and bolt catch assembly, the bolt catch assembly may include a left-side control, a right-side control, a bolt catch connected to the left-side control, and a bolt catch extension connecting the bolt catch to the right-side control. The bolt catch assembly may fit with a bolt catch recess of the lower receiver such that the left side control extends from a left side of the lower receiver, and the right-side control extends generally rearward along a right side of the lower receiver.

BOLT HEAD ASSEMBLY FOR A WEAPON AND METHOD FOR CONTROLLING THE FLUID LEVEL IN THE REBEAT DAMPER SYSTEM OF SUCH A BOLT HEAD ASSEMBLY. The invention relates to a bolt assembly comprising a bolt sleeve (2), a recoil damper system (3), a fluid filling valve (5) for the damper system (3), and a trim gauge (4) having a fluid level indicator (40) mounted to move axially relative to the bolt sleeve (2). According to the invention, the bolt sleeve (2) comprises an axial internal housing (22) opening through an opening (23) on the rear face of the bolt sleeve (2), the recoil damper system (3), the filling valve (5), and the trim gauge (4) being received in the internal housing (22). The invention also relates to a method for controlling the fluid level in the recoil damper system (3) of such a bolt assembly. Figure to be published with the abbreviation: Figure 2.

A handguard attachment assembly for securing a handguard to a barrel assembly of a firearm. The assembly has a first body and a second body. Each of the first and second bodies includes a first side and a second side oppositely disposed. A first projection extends from the first side. A second projection extends from the second side. A first adjustable fastener is configured to couple the first projection of the first body and the second projection of the second body. A second adjustable fastener is configured to couple said second projection of said first body and said first projection of said second body.

A pistol assembly comprising of a frame, a barrel connected to the frame, a slide operable to reciprocate with respect to the barrel and the frame between a forward position and a rearward position, a recoil spring compressively received between a forward position of the slide and a selected portion of the barrel and operable to bias the slide to the battery forward. The recoil spring defining a bore with an elongated guide rod received in the bore and the guide rod having a rear end abutting the frame and a forward free end. The guide rod having an elongated first portion proximate the rear end having at least a diameter of a first amount and a second portion forward of the first portion having a second diameter less than the first diameter. The slide and barrel having corresponding gas ports registered to one another in a slip fit relationship.

A firearm, comprises a bolt carrier group (20) comprising a bolt carrier (21) and a bolt (23), an upper receiver (13) configured to carry the bolt carrier (21); a magazine well (12) configured to receive a magazine (14); wherein the magazine (14) is configured to house cartridges and comprise a spring exerting a force to the cartridges from the magazine (14) towards the bolt carrier group (20); and a reverse movement of the bolt carrier group (20) is configured to unload a used cartridge from the bolt (23) and a forward movement of the bolt carrier group (20) is configured to load a new cartridge from the magazine (14). The upper receiver (13) comprises at least two receiver contact surfaces at a region defined by the bolt carrier group (20) trajectory and the magazine well (12); a first receiver contact surface (41) is at a first positive inclined angle (α1) against the force exerted by the spring, via the cartridge, to the bolt carrier group (20); a second receiver contact surface (42) is at a second negative inclined angle (α2) against the force exerted by the spring, via the cartridge, to the bolt carrier group (20); the bolt carrier group (20) comprises a first carrier contact surface (31) configured to slide against the positively inclined first receiver contact surface (41) and a second carrier contact surface configured to slide against the negatively inclined second receiver contact surface (42); wherein the force exerted by the spring is configured to push the bolt carrier group (20) towards the at least two receiver contact surfaces and causes the bolt carrier group (20) to center between the inclined angles defined by the first receiver contact surface (41) and the second receiver contact surface (42).

The invention is related with a new locked breech mechanism for firearms, mounted in the frame (21) which allows for shortening the distance between the barrel (2) axis and contact point of the grip (10). The Slide (7) / breech (16) and the barrel (2) locked together at the point of firing. The inertia pushes the slide (7) / breech (16) and the barrel (2) backwards together for a certain distance. The mechanism disengages after certain amount of travel. The breech block (6) and short stroke main spring (1) are located in the frame (21) of the firearm allowing for shortening the distance between the barrel (2) axis and contact point of the grip (10).

Rifle systems and methods of making the same are provided. The rifle system is made using alternative manufacturing methods, such as advanced additive manufacturing ("AM") techniques, also referred to as 3D printing. Further included are an improved trigger housing, an improved bolt retention mortise system configured for bilateral operation, an improved magazine well, an improved trunnion, and a bilateral operation release assembly.

The invention relates to a novel lockout breech mechanism for a firearm, which lockout breech mechanism is mounted to a frame (21), which lockout breech mechanism allows the distance between the point of contact of the barrel (2) axis and the grip (10) to be shortened. The carriage (7) / breech (16) and the barrel (2) are locked together upon firing. The carriage (7) / breech (16) and the barrel (2) are pushed back together by a distance using inertia. The mechanism is disengaged after a stroke. The breech lock block (6) and the short stroke main spring (1) are located within the frame (21) of the firearm to allow the distance between the barrel (2) axis and the point of contact of the grip (10) to be shortened.

A long firearm, comprising a stock (400) that houses a top receiver (101), which is continued by a barrel (201). In the top receiver (101), a breech (301) is arranged. The stock (400) is open under the top receiver (101). A bottom container (501) is attached to the top receiver (101). The bottom container (501) comprising a shaft (505) for a magazine (600) and a trigger mechanism with a trigger (541). The bottom container (501) is connected to the top receiver (101) separably at one side by means of a projection (502) that fits into a groove (103) in the top receiver (101), and at the opposite side it is fixed by means of a combination of a fixed claw (102) and a spring-loaded claw (511).

An operating system for a firearm includes a forward bolt includes a forward bolt cavity, a carrier disposed on a rear side of the forward bolt, the carrier including a carrier cavity, a short cam pin including (i) a forward section that is at least partially disposed within the forward bolt cavity and (ii) a rear section that is at least partially disposed within the carrier cavity, a plurality of bearings that interface with the forward bolt, a retracted configuration where the short cam pin is in a rear position relative to the forward bolt, and a deployed configuration where the short cam pin is in a forward position relative to the forward bolt.

A locking device for a firearm, the locking device includes a slide lock for installation in a frame assembly. On the slide lock is a first guiding part to be received in a first receiving slit of a frame of the frame assembly. Also on the slide lock is a second guiding part to be received in a second receiving slit of the frame of the frame assembly. The slide lock can be received in the frame displaceably between a locking position and an unlocking position. Further, the slide lock interacts with a barrel of the firearm such that the slide lock can be received in the frame displaceably in a transverse direction between the unlocking position and a self-holding position. Still further, the slide lock, when in the self-holding position, is secured to prevent it from being displaced of its own accord into the locking position.

A firearm comprising at least one frame defining a housing seat of a barrel group; and a barrel group comprising at least one barrel with longitudinal development axis (A), the barrel group being mounted in a tilting manner with respect to the frame between a position in which the barrel group engages the housing seat and a position in which the barrel group is rotated with respect thereto. The barrel group comprises at least one extractor device associated with the barrel and configured to at least partially expel at least a portion of an ammunition from the at least one barrel. The extractor device is configured to selectively operate in a first mode in which it integrally ejects a casing of an exploded ammunition and in a second mode in which it accompanies part of an unexploded ammunition in partial exited from the at least one barrel.

An assembly for holding a bolt of a firearm in an open position is disclosed. The assembly comprises a bolt catch pivotable about a first axis toward and away from a catching position. In the catching position, a portion of the bolt catch is within a path of travel of the bolt. A follower transfer adapter is pivotable about a second axis. The follower transfer adapter includes an engagement portion that is configured to engage a follower of a magazine. Optionally, the follower transfer adapter includes an overhang lip that extends transversely to the longitudinal axis of the firearm and into a path of travel of the follower to define the engagement portion. The engagement portion is positioned between the second axis and the bolt catch along the longitudinal axis of the firearm. A linkage transfers rotational movement of the follower transfer adapter to rotation of the bolt catch.

A modular firearm system has a frame with a grip configured to be held by a hand of a user and a receiving chamber formed within the grip. The system further has a chassis having a receiving channel and one or more sidewalls extending from a bottom portion of the chassis, the one or more sidewalls structured to fit within and be received by the receiving chamber of the frame. The system further has a barrel locking block structured to fit within the receiving channel of the chassis.

A magazine catch for a firearm has a catch body, a leg extending longitudinally from the catch body to a distal end, where the leg has a first leg portion and a second leg portion spaced from one another by a longitudinal gap such that the second leg portion can flex independently of the first leg portion. A catch protrusion is on a distal end portion of the leg, where the longitudinal gap extends through the catch protrusion to define a first catch portion and a second catch portion. The magazine catch can be provided, for example, as a stand-alone component or component group, as part of a firearm, or in a parts kit for an existing firearm.

In various embodiments, an apparatus is provided to operate in a recoil environment, the apparatus including: a slide including: a receiving surface on which an optic sight or an optic adapter is mountable; wherein a rear of the slide includes a rear cover opening; the receiving surface including a slide opening contiguous with the rear cover opening. In various embodiments, an attachment mountable on the slide is provided, wherein the attachment comprises the optic sight or the optic adapter. Other embodiments are disclosed and / or claimed.

A firearm receiver assembly comprises a receiver body, a top cover, and an ammunition advancing mechanism mounted on the top cover. The top cover is pivotably attached at a mounting portion thereof to a mounting portion of a receiver body for enabling the top cover to be pivotable about a top cover pivot axis between an open position and a closed position with respect to the receiver body. The top cover pivot axis extends parallel to a bore axis of the receiver body.