Calibre: 2 cm Length: 2.251 m Weight: 406 kg Breech: reciol operated bolt, percussion fired Recoil: Carriage: trailer Elevation: -12° to +90° Traverse: 360� Rate of fire: 480 rounds per minute Muzzle velocity: 900 m/s Effective range: 2,695 m Shell Weight: 305 gm Used by: Heer Variants: 2 cm Flak 30 2 cm KwK 30 2 cm Flak 38 2 cm Flakvierling 38 2 cm Gebirgs Flak 38 2 cm KwK 38