A closed-bolt blowback-operated submachine gun, the Reising Model 50 saw action with the U.S. Marines in the Pacific as a substitute for the M1 Thompson, though they found their best success as defensive weapons for war-essential industries and as patrol carbines for American police forces. Blade front and elevation adjustable peep rear sights, with a flash hider/muzzle brake, cooling fins on the barrel, three-line Worcester address near the ejection port, and three-position selector/safety on the right side. What appears to be a reversed "ET" is stamped on the left side of the receiver near the edge of the wood. Smooth pistol grip stock with a cocking lever on the underside and a lightly ribbed buttplate. Included with the lot is a black leatherette case, two extra Reising magazines, and a magazine for a Thompson Submachine Gun.