The Flak Cannon is a 20 mm anti-aircraft gun used by various forces throughout World War II. Our variant presents four Flak autocannons on a single mount manned by three or five soldiers. Cannon consisted of quad-mounted 2 cm AA guns with collapsing seats, folding handles, and ammunition racks. The mount had a triangular base with a jack at each leg for levelling the gun. The tracker traversed and elevated the mount manually using two handwheels. The gun was fired by two pedals — each of which fired two diametrically opposite barrels — in either semi-automatic or automatic mode. The effective vertical range was 2,200 metres. It was also used just as effectively against ground targets as it was against low-flying aircraft.