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 "P" marked barrel, three-line Worcester address near the ejection port, and three-position selector/safety on the right side. A "narrow" profile magazine well is installed. Smooth pistol grip stock with a cocking lever on the underside, canvas sling, and a lightly ribbed buttplate; typically seen with sling swivels on the underside and a large takedown thumbscrew, this stock has the swivels on the right and a smaller, flathead takedown screw. Magazine absent.

Very fine, with 85% of the original blue finish, showing areas of brown patina, spotting, and mild handling marks. The re-oiled stock has been sanded and repaired, with filler added between the magazine well and takedown screw, dents and scratches. 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 479.