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. Smooth pistol grip stock with a cocking lever on the underside and a lightly ribbed buttplate. The buttplate is marked "NPD," likely for a police department. A magazine loading tool is included. Included with the SMG are four extra magazines (three single-stack and one double-stack) and a Korean-marked green canvas sling.

Fine, with 60% of the faded original blue finish, showing areas of brown patina, mild edge wear, and light handling marks. The stock is very good, with a crack near the buttplate, along with mild scuffs and dents. Mechanically excellent. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) that is classified as a "Curios or Relic" as defined in 27 CFR, 478.11. These weapons are still subject to the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.