Production of the 2S5 Giatsint-S started in 1976 along with the towed version the 2A36 Giatsint-B. It uses a chassis modified from the SA-4 Krug surface-to-air missile system with good cross-country mobility, and can carry 30 152 mm rounds with a range of 28 kilometers, or 33-40 kilometers for rocket-assisted projectiles. In addition to high explosives, the gun can also fire HEAT, cluster, smoke and nuclear projectiles.[1] Deploying to fire the gun takes 3 minutes, and it can sustain a rate of fire of 5 to 6 rounds per minute.