Abstract: A magazine and compact feed mechanism for firearms includes an end cap on the magazine to keep cartridges from falling out and a stop mechanism for preventing a rotating cartridge transfer disk from traveling beyond 90°. The magazine is placed in a horizontal position so that it is parallel to the barrel and includes an end cap that is shaped to prevent cartridges from inadvertently falling out of the magazine. A spring-loaded cover may also be added to the magazine for further protection. Cartridges from the magazine are delivered to a rotatable transfer disk by an injector arm driven by the recoil of the slide mechanism. A rotatable cartridge transfer disk is also driven by the recoil of the slide mechanism and functions to receive the cartridge from the horizontal magazine and rotate it 90° so as to present it properly to the breech mechanism so that it can be presented to the barrel.

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 magazine, from which cartridges are cross-fed to a transfer disc which is rotated to align each cartridge with the barrel of a firearm, is provided at its discharge end with a spring-hinged restraining flap that normally engages the leading cartridge against passage to the transfer disc. The flap is slotted so that injector fingers, normally spring-biased to a retracted position, may enter the magazine to bias the leading cartridge into the transfer disc. An actuating arm for the transfer disc, when advanced, rotates the disc to align with the barrel the cartridge deposited therein by the injector elements. When the actuating arm is advanced, the injector elements are left free to be spring-biased to their retracted positions. When the actuating arm is retracted, a cam finger carried by the arm is affective to move the injector element through the slots in the flap to shift the next following cartridge past the flap into the transfer disc.