Fire control mechanisms for a firearm include a trigger disconnect assembly and an action lock mechanism which work together to ensure safe and reliable firearm operation. The trigger disconnect uses a spring biased disconnector pivotably mounted on the trigger to actuate the sear and release a hammer sear upon firing. The hammer sear engages a compliant interface formed by a spring which actuates the action lock to unlock the bolt after the trigger has been pulled.

A device for converting a semiautomatic firearm to a non-semiautomatic firearm. The device includes a bolt stop lever pivotally attachable to a receiver of a firearm, a spring configured to be installed in contact with the bolt stop lever and a firearm receiver such that the spring exerts a force on the bolt stop lever to retain the bolt stop lever in a first position, and, a bolt release mechanism operatively coupleable to the bolt stop lever and configured to pivot the bolt stop lever against the force of the spring into a second position. The bolt release mechanism is operatively decoupled from the bolt stop lever when the bolt stop lever reaches the second position. When in the first position the bolt stop lever restricts motion of a bolt of the firearm, and when in the second position, the bolt stop lever permits motion of the firearm bolt.

Fire control mechanisms for a firearm include a trigger disconnect assembly and an action lock mechanism which work together to ensure safe and reliable firearm operation. The trigger disconnect uses a spring biased disconnector pivotably mounted on the trigger to actuate the sear and release a hammer sear upon firing. The hammer sear engages a compliant interface formed by a spring which actuates the action lock to unlock the bolt after the trigger has been pulled.

Fire control mechanisms for a firearm include a trigger disconnect assembly and an action lock mechanism which work together to ensure safe and reliable firearm operation. The trigger disconnect uses a spring biased disconnector pivotably mounted on the trigger to actuate the sear and release a hammer sear upon firing. The hammer sear engages a compliant interface formed by a spring which actuates the action lock to unlock the bolt after the trigger has been pulled.

A device implementable on a firearm includes a main body and a paddle portion. The main body includes a bolt catching portion, a first protrusion, a second protrusion, and a pivot portion connecting the bolt catching portion, the first protrusion and the second protrusion. The paddle portion is detachably attached to the first protrusion and the second protrusion of the main body. The paddle portion includes a first paddle, a second paddle, and a connecting portion connecting the first paddle and the second paddle. The pivot portion is pivotably coupled to the wall to allow the bolt catching portion to pivot between a bolt releasing position and a bolt stopping position. The first paddle is coupled to the first protrusion and the second paddle is coupled to the second protrusion.

A device implementable on a firearm includes a main body and a paddle portion. The main body includes a bolt catching portion, a first protrusion, a second protrusion, and a pivot portion connecting the bolt catching portion, the first protrusion and the second protrusion. The paddle portion is detachably attached to the first protrusion and the second protrusion of the main body. The paddle portion includes a first paddle, a second paddle, and a connecting portion connecting the first paddle and the second paddle. The pivot portion is pivotably coupled to the wall to allow the bolt catching portion to pivot between a bolt releasing position and a bolt stopping position. The first paddle is coupled to the first protrusion and the second paddle is coupled to the second protrusion.

Provided is a mechanism for selectively preventing cycling of a semiautomatic handgun having a frame and a longitudinally reciprocating slide. The device includes a pivotal blocking lever on one of the slice or frame. The blocking lever is selectively movable between a first position that allows the slide to cycle when the handgun is fired and a second position in which a blocking member mechanically bridges between the frame and slide to block cycling movement of the slide when the handgun is fired.

A receiver for a firearm and a method of disposing the receiver to prevent automatic reloading and/or trigger reset of a firearm are disclosed. A blocking mechanism is moveable between an upward and a downward position and the blocking mechanism is in the downward position when the firearm is in battery. The blocking mechanism automatically moves to the upward position after a round is fired and the blocking mechanism prevents automatic reloading and/or trigger reset of the firearm when in the upward position.

A device for converting a semiautomatic firearm to a non-semiautomatic firearm. The device includes a bolt stop lever pivotally attachable to a receiver of a firearm, a spring configured to be installed in contact with the bolt stop lever and a firearm receiver such that the spring exerts a force on the bolt stop lever to retain the bolt stop lever in a first position, and, a bolt release mechanism operatively coupleable to the bolt stop lever and configured to pivot the bolt stop lever against the force of the spring into a second position. The bolt release mechanism is operatively decoupled from the bolt stop lever when the bolt stop lever reaches the second position. When in the first position the bolt stop lever restricts motion of a bolt of the firearm, and when in the second position, the bolt stop lever permits motion of the firearm bolt.

The invention relates to a bolt stop for an automatic firearm comprising a bolt stop lever that can be moved between a release position and a catch position, and a locking device that can be moved between a standby position and a locking position, for selectively securing the bolt stop lever in the release position, wherein the locking device is disengaged with the bolt stop lever when in the standby position, and is engaged in with the bolt stop lever when in the locking position, the bolt stop lever deactivated in the locking position.