Dux 53

The DUX 53 was a German blowback operated sub-machine-gun based upon the Finnish Suomi M1944 and produced for the West German border guards in 1954. The DUX 53 was chambered for the 9 mm Parabellum cartridge which it took from a 50-round Suomi box magazine and fired at a cyclic rate of 500 rounds per minute and a muzzle velocity of 381 meters per s...
Found on http://www.probertencyclopaedia.com/browse/FMD.HTM
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