80mm 29/38M Anti-aircraft Gun (HU550) with one 80mm 29/38M Anti-aircraft gun, a five man standard crew, extra loading crew, one large base & one medium base. The 80mm 29/38M Anti-aircraft gun may have been overshadowed by the smaller 40mm Bofors Anti-aircraft gun during World War Two, but it"s designed took root in the work done in conjunction with Krupp which eventually lead to the design of the even more famous gun, the infamous German "88". The 80mm 29/38M Anti-aircraft Gun Specifications Calibre: 80mm. Weight: 3300kg. Max. Range: 8000m. Barrel length: 3770mm. Weight of Shell: 8kg. Elevation: -5°/+80º Traverse: 360º Muzzle Velocity: 750m/s Rate of Fire: 20 rounds per minute.