MP 18
Produced by Bergmann Waffenfabrik C.G. Haenel (MP 28/II) Lindelof Konetehdas (Lindelof Submachinegun) Pieper (Mi 34) Qingdao Iron Works SIG (SIG M1920)
The MP 18 (Maschinen-Pistole 18) is a German submachine gun designed and manufactured by Bergmann Waffenfabrik. Introduced into service in mid-1918 by the German Army during World War I, the MP 18 was intended for use as a short-range weapon for trench warfare that would provide individual soldiers with increased firepower over a pistol. Although MP 18 production ended after World War I, it was highly influential on subsequent small arms design; it formed the basis of most submachine guns manufactured during the first half of the 20th century.