An ambidextrous bolt catch for use with a firearm, including: a bolt catch; a first lever operably coupled to the bolt catch via a connecting pin, wherein movement of the bolt catch causes movement of the first lever and movement of the first lever causes movement of the bolt catch; and a second lever pivotally mounted to the first lever.

A delayed blowback device preferably includes a bolt, a gas key and at least one spring-loaded projection. A projection slot or projection pocket traverses a bottom of the gas key, which are sized to receive a width of the spring-loaded projection. The spring-loaded projection could have a round outer perimeter or a D-shaped outer perimeter. A location of the projection slot along a length of the gas key is such that the projection contacts a cam pocket in an inner wall of an upper receiver. In a second embodiment, a slide stop in a bottom of the gas key is used to push a projection into the cam pocket. Spring rates may be varied to increase or decrease the firing rate of the firearm. The return speed of the bolt carrier could also be modified by changing a distance between the projection pocket and a rear of the bolt.

A delayed blowback device preferably includes a bolt, a gas key and at least one spring-loaded projection. A projection slot or projection pocket traverses a bottom of the gas key, which are sized to receive a width of the spring-loaded projection. The spring-loaded projection could have a round outer perimeter or a D-shaped outer perimeter. A location of the projection slot along a length of the gas key is such that the projection contacts a cam pocket in an inner wall of an upper receiver. In a second embodiment, a slide stop in a bottom of the gas key is used to push a projection into the cam pocket. Spring rates may be varied to increase or decrease the firing rate of the firearm. The return speed of the bolt carrier could also be modified by changing a distance between the projection pocket and a rear of the bolt.

An ambidextrous bolt catch for use with a firearm, including: a bolt catch; a first lever operably coupled to the bolt catch via a connecting pin, wherein movement of the bolt catch causes movement of the first lever and movement of the first lever causes movement of the bolt catch; and a second lever pivotally mounted to the first lever.

An ambidextrous bolt catch for use with a firearm, including: a bolt catch; a first lever operably coupled to the bolt catch via a connecting pin, wherein movement of the bolt catch causes movement of the first lever and movement of the first lever causes movement of the bolt catch; and a second lever pivotally mounted to the first lever.

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.

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.

The present invention relates to a firearm, which includes a receiver and a barrel mountable to the receiver. A slide is mountable to the receiver so as to be movable between an open position and a closed position. A locking element is operatively associated with the barrel. The locking element is displaceable between an inactive position and an active position whereby, when the locking element is in the active position, the locking element engages the slide such that movement of the slide towards the open position is inhibited.

The present invention relates to a firearm, which includes a receiver and a barrel mountable to the receiver. A slide is mountable to the receiver so as to be movable between an open position and a closed position. A locking element is operatively associated with the barrel. The locking element is displaceable between an inactive position and an active position whereby, when the locking element is in the active position, the locking element engages the slide such that movement of the slide towards the open position is inhibited.

A firearm includes a frame to which a barrel and slide are slideably mounted and in which a magazine is slideably received. A bumper telescoped on a push rod slideable with the slide pushes a shell in the magazine onto a pivotal carrier. Locking wings pivotally mounted to the barrel are cammed in troughs of a cam block as the barrel and the slide slide parallel to the longitudinal axis of the barrel relative to the cam block, so that lock tabs are removably received in locking recesses in the slide to removably lock the barrel and slide together. A trigger is slideably mounted to the frame for movement parallel to the longitudinal axis of the barrel for pivoting a sear lever engagable with a biased striker and moving a safety from an interfering position relative to the striker.