The US M16 self-propelled anti-aircraft mounting

The M45 quadruple machine gun mounting was a weapon mounting with four 0.5-in (12.7-mm) Colt-Browning M2HB (heavy barrel) L/90 heavy machine guns in the form of M2 Turret Type weapons mounted in vertical pairs on each side of the gunner’s electrically open cab. The M45 was developed by the W. L. Maxson Corporation in 1942 …