A method for aiding repeated firing of a semiautomatic firearm having a trigger and a bolt includes means for detecting that the bolt has translated rearwardly at least a first predetermined distance due to firing the firearm, means for calculating a particular time when the bolt will be in a chambered position, responsive to detecting that the bolt has translated rearwardly at least the first predetermined distance and, means for applying a forward biasing force to translate the trigger from a fired to an un-fired position, at the particular time the bolt is in the chambered position, and subsequently removing said forward biasing force.

A fire control assembly and a method are disclosed. The fire control assembly contains a pivotable shaft containing a first end and a second end, and a first selector member removably coupled with the first end of the pivotable shaft, wherein the first selector member is movable between a first position relative to the pivotable shaft and a second position relative to the pivotable shaft, wherein the first selector member is configured to rotate the pivotable shaft from a safe position to a firing position and back to the safe position when the first selector member is in the first position relative to the pivotable shaft, wherein the first selector member is configured to prevent the pivotable shaft from rotating into the firing position when the first selector member is in the second position relative to the pivotable shaft.

A fire control assembly and a method are disclosed. The fire control assembly contains a pivotable shaft containing a first end and a second end, and a first selector member removably coupled with the first end of the pivotable shaft, wherein the first selector member is movable between a first position relative to the pivotable shaft and a second position relative to the pivotable shaft, wherein the first selector member is configured to rotate the pivotable shaft from a safe position to a firing position and back to the safe position when the first selector member is in the first position relative to the pivotable shaft, wherein the first selector member is configured to prevent the pivotable shaft from rotating into the firing position when the first selector member is in the second position relative to the pivotable shaft.

A safety selector having a rotatable lock member transitionable between a first position and a second position. In the first position, at least a portion of the lock member is configured to inhibit movement of at least a portion of a firing mechanism of a firearm. A first lever member coupled with a first end of the lock member and a second lever member coupled with the first end and engageable with an outer surface of the first lever member.

Trigger groups for semi-automatic firearms have a frame, a hammer connected to the frame and movable between a cocked position and a striking position, the hammer being biased toward the striking position, a trigger element connected to the frame and movable by a user between a forward position and a rearward position, a selector connected to the frame and movable between at least a first position and a second position, and a plurality of retention facilities each operable to selectively restrain the hammer in the cocked position, and when the selector is in the second position to enable discharge of the firearm in response to movement of the trigger to the forward position after movement to the rearward position and to enable an additional discharge of the firearm upon release of the trigger to the forward position.

Trigger groups for semi-automatic firearms have a frame, a hammer connected to the frame and movable between a cocked position and a striking position, the hammer being biased toward the striking position, a trigger element connected to the frame and movable by a user between a forward position and a rearward position, a selector connected to the frame and movable between at least a first position and a second position, and a plurality of retention facilities each operable to selectively restrain the hammer in the cocked position, and when the selector is in the second position to enable discharge of the firearm in response to movement of the trigger to the forward position after movement to the rearward position and to enable an additional discharge of the firearm upon release of the trigger to the forward position.

Trigger groups for semi-automatic firearms have a frame, a hammer connected to the frame and movable between a cocked position and a striking position, the hammer being biased toward the striking position, a trigger element connected to the frame and movable by a user between a forward position and a rearward position, a selector connected to the frame and movable between at least a first position and a second position, a disconnector having a hammer engagement facility adapted to selectably engage the hammer, a disconnector control element movable between a first control position and a second control position, the disconnector being operably engaged to the disconnector control element, the disconnector operable to move in a first range of motion when the disconnector control element is in the first control position, and in a second range of motion when the disconnector control element is in the second control position.

The present invention relates to a firearm shooting with an open breech and comprising a detent mechanism with a hammer block (5) that can block the forward movement of movable parts (2), a trigger (10) that can lift the hammer block (5) when the movable parts (2) move backwards, an action bar (12) that actuates the hammer block (5) and the trigger (10) when shooting is triggered and stopped, and a finger piece (13) linked to the action bar (12) by a disconnector (11) that can shift from a position in which the finger piece (13) is mechanically coupled to the action bar (12) to a position in which the finger piece (13) is mechanically uncoupled from the action bar (12), the action bar (12) shifting from a shooting position to a rest position when the disconnector (11) shifts from its coupling position to its uncoupling position so as to prevent the following shot from being fired if the finger piece (13) is maintained in the shooting position.

The present invention relates to a firearm shooting with an open breech and comprising a detent mechanism with a hammer block (5) that can block the forward movement of movable parts (2), a trigger (10) that can lift the hammer block (5) when the movable parts (2) move backwards, an action bar (12) that actuates the hammer block (5) and the trigger (10) when shooting is triggered and stopped, and a finger piece (13) linked to the action bar (12) by a disconnector (11) that can shift from a position in which the finger piece (13) is mechanically coupled to the action bar (12) to a position in which the finger piece (13) is mechanically uncoupled from the action bar (12), the action bar (12) shifting from a shooting position to a rest position when the disconnector (11) shifts from its coupling position to its uncoupling position so as to prevent the following shot from being fired if the finger piece (13) is maintained in the shooting position.

Firearm control mechanisms have a frame, a trigger element connected to the frame and movable with respect to the frame, a selector connected to the frame and pivotable with respect to the frame about a pivot axis, the selector including a first cam surface operably engaged to a follower portion of the trigger element, the selector having a detent portion having a detent surface opposing a spring biased detent follower connected to the frame and operable to reciprocate against the detent surface, the detent surface having a plurality of stable positions, each corresponding to an operating condition of the fire control mechanism, and the detent portion being a body lacking any concave surfaces. The detent surface may have a plurality of flat cam surfaces. At least two of the flat cam surfaces may be perpendicular to each other. A corner may join the plurality of flat cam surfaces.