A refined and streamlined successor to the MP38, the MP40 made extensive use of metal stampings and synthetic materials to make a weapon robust enough to withstand the stress of war while being simple enough to manufacture to keep up with the demand. Nearly every armed branch and paramilitary organization in Germany made use of the MP40, and many also found their way into the hands of opposition forces such as the French Resistance and Poland's Home Army, making it one of the signature weapons of the war. "MP40/fxo 41" (Haenel) on the end cap, "eagle/37" (Haenel) proofed receiver tube and "cos" (Merz-Werke) triggerguard, with a hooded blade front and two-leaf notch rear sights, Bakelite side panels, and an underfolding steel stock. An early pattern "flat side" magazine well is installed. A marking for U.S. Armament Corporation of Ephrata, PA, has been added to the right side of the tube. External numbers are matching, with a mixed bolt assembly. Magazine absent.

Fine as reactivated, with 70% of the refinished blue, with areas of mixed brown patina, mild spotting and light handling marks. Welds have been ground out at the juncture between the barrel nut and receiver and where the receiver meets the endcap, with pitting and roughness in the affected areas. Minor scuffs and dings are present on the otherwise fine Bakelite panels. 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.