This 15 round metal constructed magazine assembly is for the U.S. military model M1 Carbine semi-auto rifle and is in very good condition with light wear. It is a type II magazine which has a ridge in the floorplate. This magazine does not have a hole in the rear bottom of the body; nor does it have a hole in the floorplate. The B marking is enclosed in a circle. Bridgeport Metal Goods Co. was a wartime manufacturer of these magazines. (file photos)
