The 9K22 Tunguska (Russian: 2К22 "Тунгуска"; English: Tunguska) is a Russian tracked self-propelled anti-aircraft weapon armed with a surface-to-air gun and missile system. It is designed to provide day and night protection for infantry and tank regiments against low-flying aircraft, helicopters, and cruise missiles in all weather conditions. Its NATO reporting name is SA-19 "Grison".
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The GRAU index lists the "Tunguska" system as 2K22, although the army designation 9K22 is also a valid reference. A complete system or battery consists of six 2S6 combat vehicles armed with the 9M311 "Treugol'nik" (triangle) surface-to-air missile and two 2A38 30 mm cannons. These are accompanied by up to three 2F77 transloader trucks. The 9K22 is also associated with a variety of support facilities including the 2F55, 1R10 and 2V110 repair and maintenance vehicles, the MTO-AGZ workshop and the 9V921 test vehicle and others. These facilities provide maintenance for the 9K22 battery in the field as well as scheduled overhauls. Each system can attack six targets simultaneously (1 for each machine 2S6) limited in height of 3.5 km and a height of from -9 (gun)/-10(rocket) to +87 degrees. Minimum height of defeat 0 meters for guns and rockets to 15 meters (original 9K22)
