- Launcher: 2S6 Combat Vehicle
- Associated Radar: Target Track and Fire Control
- Maximum Range: 7nm
- Minimum Range: 1nm
- Maximum Altitude: 11,000ft
- Maximum Speed: 2.75 Mach
- Missile Type: 9M311 Grison
- Mobile: Yes
The 2S6 Tunguska 2K22 (NATO code SA-19 Grison) is a Russian-made self-propelled air defense system that combines gun and missile armament. The development of the 2S6 Tunguska began in 1970 after a request by the Russian army for a new self-propelled anti-aircraft weapon system to replace the old ZSU-23-4 self-propelled anti-aircraft gun. The first version that entered service in 1986 was only equipped with four missiles, two on either side, in the ready-to-launch position. The second version to enter service with the Russian army, and the current production model vehicle, is designated the 2S6M or 2K22M, he has eight missiles, four to each side of the turret. The Tunguska vehicle uses a tracked chassis GM-352M which is also used for the ground-to-air missile system Buk-M1 SA-11 Gadfly. A typical 2K22/2K22M battery would consist of six 2S6/2S6M self-propelled air defense vehicles, six reload vehicles and associated support and maintenance vehicles. The 2S6 Tunguska is intended to protect tank and motorized units from low-flying aircraft and helicopters, some types of cruise-missile, as well as to engage light armor ground targets and manpower of the enemy.