A mount for a firearm has a body having a first clamp configured to engage a first edge of the rail, a jaw movably connected to the body and having a second clamp opposed to the first clamp and operable with the respective clamps to engage respective opposed lateral edges of the rail, a spring biasing the jaw toward the body, and at least a portion of the spring being between the clamps. There may be a pushrod connected to a first one of the body and the jaw and slidably received by the other of the body and the jaw. The spring may be laterally positioned to one side of the pushrod. The spring may be a coil spring having a spring axis offset from a pushrod axis defined by the pushrod.

Firearm pin retainer plates and pins have a frame defining an internal space, a moving action part defining a bore and connected to the frame within the space, a pivot pin connected to the frame and to the action part such that the action part pivots with respect to the frame, the pivot pin having a cylindrical body portion closely received in the bore and defining a pin axis, the pivot pin having a first flat surface portion, a retention element connected to the frame within the space and having a first retention facility adapted to engage the first flat surface portion to prevent rotation of the pin with respect to the frame. The pin may have a second flat surface portion opposed to the first flat surface portion. The first retention facility may define a slot having opposed edges operable to engage the first and second flat surface portions.

Firearm pin retainer plates and pins have a frame defining an internal space, a moving action part defining a bore and connected to the frame within the space, a pivot pin connected to the frame and to the action part such that the action part pivots with respect to the frame, the pivot pin having a cylindrical body portion closely received in the bore and defining a pin axis, the pivot pin having a first flat surface portion, a retention element connected to the frame within the space and having a first retention facility adapted to engage the first flat surface portion to prevent rotation of the pin with respect to the frame. The pin may have a second flat surface portion opposed to the first flat surface portion. The first retention facility may define a slot having opposed edges operable to engage the first and second flat surface portions.

Trigger module securing apparatus using internally threaded pins and threaded fasteners to secure a trigger module into the lower receiver of a rifle.

Trigger module securing apparatus using internally threaded pins and threaded fasteners to secure a trigger module into the lower receiver of a rifle.

A modular trigger assembly having auto-tensioning hammer pin and trigger pins, which allow for rapid installation and removal of the modular trigger assembly from the lower receiver of an ArmaLite style modular rifle using minimal tools. When installed and under tension, the auto-tensioning pins remain flush with the exterior of the lower receiver and present no external parts outside of the lower receiver while maintaining anti-walk and anti-roll properties.

An automatic or semi-automatic firearm including a trigger having a frame, at least one trigger sear extending from the frame, and a hammer having a hammer pivot axis, a head and at least one hammer sear disposed on a lateral side of the hammer between the hammer pivot axis and the head, wherein the frame includes a pivot axis and the at least one trigger sear includes a trigger sear surface, the at least one trigger sear extending from the frame such that the at least one trigger sear engages a corresponding one of the at least one hammer sear.

An automatic or semi-automatic firearm including a trigger having a frame, at least one trigger sear extending from the frame, and a hammer having a hammer pivot axis, a head and at least one hammer sear disposed on a lateral side of the hammer between the hammer pivot axis and the head, wherein the frame includes a pivot axis and the at least one trigger sear includes a trigger sear surface, the at least one trigger sear extending from the frame such that the at least one trigger sear engages a corresponding one of the at least one hammer sear.

A trigger emulation mechanism of an electric gun is disclosed. When actuated, a trigger assembly causes a retainer assembly to drive the toothed rack element to allow the toothed rack element to operate in combination with a gear shaft assembly to amplify a rotational angle, making the gear shaft assembly drive a striker hammer plate to rotate and allowing the striker hammer plate to drive the striker hammer elastic element to accumulate energy therein. Afterward, the retainer assembly may release the toothed rack element, causing the striker hammer elastic element to force the striker hammer plate to rotate in an opposite direction to strike thus generate sound and vibration, thereby achieving advantages of enhancing the degree of simulation by generating sound and vibration and an idle stroke before firing is initiated and also reducing the size thereof for applications to various models of electric guns.

A trigger emulation mechanism of an electric gun is disclosed. When actuated, a trigger assembly causes a retainer assembly to drive the toothed rack element to allow the toothed rack element to operate in combination with a gear shaft assembly to amplify a rotational angle, making the gear shaft assembly drive a striker hammer plate to rotate and allowing the striker hammer plate to drive the striker hammer elastic element to accumulate energy therein. Afterward, the retainer assembly may release the toothed rack element, causing the striker hammer elastic element to force the striker hammer plate to rotate in an opposite direction to strike thus generate sound and vibration, thereby achieving advantages of enhancing the degree of simulation by generating sound and vibration and an idle stroke before firing is initiated and also reducing the size thereof for applications to various models of electric guns.