Abstract: A muzzle device for use on a firearm to reduce noise signature and muzzle flash includes a cylindrical housing. The cylindrical housing defines a first chamber and a second chamber with a longitudinal axis extending therethrough. The first chamber has at least one port that extends outward therefrom. The second chamber has at least one slot that extends outward therefrom. The at least one port forms an acute angle with the longitudinal axis that extends forward toward the slot. The angle formed by the at least one port and the longitudinal axis being about 50 degrees. The cylindrical housing defines an outer annular groove being in communication with the at least one port. The at least one port is in communication with an aft surface of the annular groove.

Abstract: A trigger safety for a firearm having a frame and slide. The safety includes a safety assembly frame mountable within the firearm frame. The safety also includes at least one actuator operatively attached to the safety assembly frame, the actuator being capable of selectively moving the safety assembly frame between a first position and a second position. The assembly frame also has an abutment surface. In the first position the abutment surface contacts a trigger bar of the firearm preventing movement of the trigger and discharge of the firearm while allowing the slide to be cycled and in the second position the abutment surface is not in contact with the trigger bar and the firearm can be discharged.

Abstract: A modular firearm according to the present invention includes a breach face module receiver adapted for receiving a fully assembled breach face module. The breach face module includes a breach face and an extractor arm precisely located relative to the breach face for engaging a cartridge rim and ejecting the cartridge from the firearm. The extractor arm is pivotally mounted in the breach face module and is rotationally biased by an extractor spring to effect cartridge engagement. The location of the extractor arm and the size of the breach face are variable so that the breach face module can be adapted for use with a range of calibers. The exterior dimensions of the breach face module remain constant so that a single breach face module receiver may be used to manufacture firearms of various calibers.

Abstract: An interlocked firing mechanism for a gun includes a trigger, a sear and a firing pin having a depending leg, wherein the firing pin is movable in a rectilinear manner along a firing axis. The depending leg of the firing pin is adapted to have a contact surface, while the sear is adapted to have a control surface in mating engagement with the contact surface at a time prior to firing of the gun. The contact surface and the control surface of the interlocked firing mechanism of the present invention are further adapted to have parallel surfaces which mate with one another along a mating axis, defining an edge of a mating plane, which is set at a predetermined angle from a line perpendicular to the firing axis.