A closed-bolt blowback-operated sub-machine gun, the Reising Model 50 saw action with the United States 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 break, cooling fins on the barrel, three line New Haven address near the ejector port, and three position selector on the right side. Smooth pistol grip stock with cocking lever on the underside, a ribbed buttplate and brown leather sling. Included with the lot is one 30-round magazine and two 20-round magazines.