This is an attractive, fine original example of a German MP40 submachine gun. 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. "43/cos" (Merz Brothers) marked on the underside of the receiver tube and "MP40/ayf43" (Erma) and "1396r cnd" (Krupp-National-Registerierkassen of Berlin) on the end cap. Matching full and partial serial numbers on many parts, including the sight components, barrel, triggerguard, stock, bolt and firing pin. Waffenamt proofs on various components. Fitted with a set of brown bakelite side panels and an under-folding stock. Included with the lot are three total magazines (two "ayf 42", one "98E 41", thirteen full and partial boxes of 1940s vintage German 9mm ammo, and a brown leather sling.

Fine, with 40% of the original blue finish, showing a mixed brown and gray patina on the receiver tube, areas of textured brown patina and mild spotting, heavier oxidization on the stock, and mild edge wear and handling marks overall. The side panels are also fine, with heat crazing overall and some mild scuffs. 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.