Erma EMP
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The German submachine gun EMP also known as MPE was produced by the Erma factory, and was based on designs acquired from Heinrich Vollmer. The gun was produced from 1931 to 1938 in roughly 10,000 exemplars and exported to Spain, Mexico, China and... Wikipedia
Designed: 1930
Caliber: 9 mm
Effective firing range: 150 m (490 ft)
In service: 1931–1958
Length: 95 cm (37 in)
Manufacturer: Erma Werke
No. built: Approx.10,000