A safety device for a firearm that makes it possible to prevent a shot from being fired, without blocking the rearming function, the said safety device comprising a retainer that can be moved between a stopping position that blocks the moving parts of the weapon in a rear position, and a released position that allows the said moving parts to move in both directions, the said safety device comprising a safety element that can move between a position that blocks the retainer in the stopping position and a position that releases the retainer, the said safety element bearing against an immobile part of the safety device and the said safety element being able to be moved towards the position that releases the retainer through a rearward movement of the moving parts.

A safety device for a firearm that makes it possible to prevent a shot from being fired, without blocking the rearming function, the said safety device comprising a retainer that can be moved between a stopping position that blocks the moving parts of the weapon in a rear position, and a released position that allows the said moving parts to move in both directions, the said safety device comprising a safety element that can move between a position that blocks the retainer in the stopping position and a position that releases the retainer, the said safety element bearing against an immobile part of the safety device and the said safety element being able to be moved towards the position that releases the retainer through a rearward movement of the moving parts.

An operating system for a firearm includes a trigger, a hammer, a disconnector, a pivoting arm, and a lower member. The trigger includes a lower portion, an upper portion, and a trigger pivot. The disconnector includes a lower portion, an upper portion, and a disconnector pivot. The pivoting arm includes a forward protrusion, a pivoting arm opening, and a pin extending through the pivoting arm opening. The lower member includes a lower member opening and a pin hole that is coaxial with the trigger pivot and the disconnector pivot. At least a portion of the trigger and at least a portion of the disconnector are disposed within the lower member opening. Motion of the trigger causes the forward protrusion of the pivoting arm to engage a bolt carrier group and hold the bolt carrier group in an open position.

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.

A magazine is provided for a firearm. The magazine comprises a locking mechanism. The locking mechanism has a user interface adapted to enable a user to select between a locked condition and an unlocked condition. The locking mechanism has a rotor movable between a first rotational position when the locking mechanism is in the locked condition and a second rotational position when the locking mechanism is in the unlocked condition. The magazine comprises an elongated shaft connected to the rotor. The magazine comprises a block element connected to the elongated shaft. The block element is adapted to move between a first position when the locking mechanism is in the locked condition in which at least one of firearm operation and magazine extraction are prevented, and a second position when the locking mechanism is in the unlocked condition in which firearm operation and magazine extraction are enabled.

A bolt stop actuator is disclosed. The actuator may include a lift arm, a first leg extending from a point proximate to an end of the lift bar and generally perpendicular therefrom, a second leg extending in the same direction from the lift bar as the first leg, and a projection extending from the lift bar and configured to contact a follower of an empty magazine when the bolt stop actuator is assembled into a firearm. Neither the first leg, nor the second leg, include apertures positioned distal to the lift arm.

An apparatus for ambidextrous control of a bolt carrier and/or a magazine release is disclosed. In certain examples, the apparatus includes a lower receiver of a firearm including a protrusion extending outward from a first side of the lower receiver, the protrusion. The protrusion, in certain examples, includes a first slot for receiving an L-shaped lever, the L-shaped lever having a vertical arm coupled to a bolt catch lever and a horizontal arm that extends through a trigger area to a second side of the lower receiver that is opposite the first side. In certain examples, the protrusion also includes a second slot for receiving a magazine catch lever.

A repeating weapon includes a chamber with a chamber body movable between locked and unlocked positions, and a trigger mechanism with a trigger, a sear movable between cocked and half-cocked positions, a transfer element movable by actuation of trigger between a holding position to hold the sear in the cocked position and a release position to move the sear into the half-cocked position, and a breech catch element movable transversely to the chamber body to limit the axial movement of chamber during opening. A control cam is arranged on the chamber body for moving the breech catch element into a safe position when the chamber body is moved into the unlocked position, and a blocking element cooperating with the transfer element is arranged on the breech catch element for preventing movement of the transfer element into the release position when the breech catch element moves into the safe position.

A repeating weapon includes a chamber with a chamber body movable between locked and unlocked positions, and a trigger mechanism with a trigger, a sear movable between cocked and half-cocked positions, a transfer element movable by actuation of trigger between a holding position to hold the sear in the cocked position and a release position to move the sear into the half-cocked position, and a breech catch element movable transversely to the chamber body to limit the axial movement of chamber during opening. A control cam is arranged on the chamber body for moving the breech catch element into a safe position when the chamber body is moved into the unlocked position, and a blocking element cooperating with the transfer element is arranged on the breech catch element for preventing movement of the transfer element into the release position when the breech catch element moves into the safe position.