MP38/40

The MP38 was the standard German submachine gun of WWII. As the number in its name suggests, it was first issued in 1938. Two years later, it was replaced by the MP40, which was identical except used less expensive stamped metal for certain parts, which was more cost effective for a mass produced weapon. It was a very successful firearm and even Allied forces preferred them over their own submachine guns and scavenged MP40s whenever possible. The design was copied by other countries both during and after the war.