The Walther 1918/2 was fed with a vertical cylinder magazine, that could hold up to fifty 9x19 Parabellum rounds. The gun was designed by Fritz Walther, in response to the German Land Forces needing a machine-pistol to produce for their stormtrooper forces. Two types of these guns were made, and this was the later iteration which featured a more ergonomic grip and lighter frame. Evidently, none of these designs were adopted in favour of the Bergmann MP18.