SD:FlaK 43 37mm

 is a German Anti-air unit.

Overview
FlaK 43 37mm is a improvement model over the earlier models of 37mm. The FlaK 43 was lighter compared to earlier counterparts with the anti-aircraft cannon weighting 1,250 kg (2,760 lb) in combat, and 2,000 kg (4,400 lb) in transport. The new gas-operated breech increase practical firing rate to 150 RPM.