Abstract: An improved magazine and feed mechanism is disclosed for firearms which provides a transfer disc for receiving cartridges laterally with respect to the barrel of the firearm such as to be rotatable to orient the cartridge longitudinally with respect to the barrel. The transfer disc is positioned above the bolt and the bolt includes abutting means for contacting a cartridge defined within the slot in the transfer disc and urging same downwardly into the barrel. Continuous positive engagement of rotation of the transfer disc resulting from movement of the bolt is achieved. A cartridge injector head is included having a flat spring biasing device which cooperates with a cartridge injector to remove cartridges from the magazine for placement into the slot of the transfer disc.

Abstract: A trigger mechanism for a firearm such as a pistol having a firing pin spring loaded into a firing position and held in a retracted position by a spring loaded sear together with a sear trip bar pivotally movable by a manually operated lever pivotally mounted on the exterior of a housing for the firearm trigger into retaining engagement with a release lever spring loaded against the trigger so that manual actuation of the trigger permits movement of the release lever out of engagement with the sear trip bar into tripping engagement with the sear for releasing the firing pin to fire the firearm.