US12498190 - Drum-type magazine used in small firearm
The present invention relates to a drum-type magazine used in a small firearm. The drum-type magazine includes: a housing which includes a rear cover having an insertion space formed at the central portion, a pair of bullet guide parts formed below the insertion space, and a first storage space and a second storage space formed on both sides facing each other around the insertion space, and a front cover coupled in front of the rear cover; an insertion part inserted into the insertion space; a pair of bullet-moving members, each of which is rotatably installed with elastic force on a rotational shaft formed at the center of the first storage space and the second storage space and has seating grooves sequentially formed on the outer circumference thereof; and an operation member including a lifting portion having an operation lever, a long-hole bracket installed at a lower portion of the lifting portion, an operation rod of which one side is rotatably connected to the long-hole bracket and the other side is rotatably connected to the rotational shaft with elastic force to be rotated depending on the ascending of the lifting portion, and an operation portion installed inside an extended portion of the other side of the operation rod, rotatably installed at a predetermined angle with elastic force and pushing the an operation protrusion of the bullet-moving member to rotate the bullet-moving member in the clockwise direction.