Gryazev-Shipunov GSh-30-1

The Gryazev-Shipunov GSh-30-1 (also known by the GRAU index designation 9A-4071K) is a 30 mm (1.18 in) autocannon designed for use on Soviet and later Russian military aircraft, entering service in the early 1980s. Its current manufacturer is the Russian company JSC Izhmash.