2K22 Tunguska surface-to-air gun and missile system

artillery arms: 2X30mm double-barrel automatic cannon 2А38М (The barrel is water-cooled) overall rate of firing: 3900 rds/min (low) 5000 rds/min (high) The initial 1982 2K22 2S6 Tunguska variant was superceded by the 2K22M/2S6M Tunguska M in 1990, and the 2K22M1/2S6M1 Tunguska M1 in 2003.