2A72 Russian 30mm Autocannon
2A72



The 2A72 is a late Cold War-era 30mm autocannon of Soviet origin. It was developed as a less complex and lighter alternative to the widely used 2A42. Studies revealed that the 2A42 was virtually always used at the low rate of fire setting. By modifying and simplifying the 2A42 design it could be produced at a lower cost and be used for a wider range of applications. The 2A72 is used both as the main armament and as a coaxial weapon for the 100mm 2A70 low-pressure cannon. The 2A72 is a much-simplified design based on the 2A42 consisting of only 349 parts instead of 578. Unlike the 2A42 it is not gas operated but recoil-operated. Unlike the fixed barrel on the 2A42, the barrel moves rearward upon firing. A new design muzzle brake is used in order to retain enough recoil to cycle the weapon. Since the initial recoil impulse is lower the 2A72 can be fitted to lighter vehicles, such as the BTR-80A.