The Mark IV weighs 65 tons. It has 1500 horsepowers and the maximum speed is over 60 km/h. The Mark IV is armed with a 120-millimeter MG253 main gun using an electrical semi-automatic revolving magazine for 10 rounds. Coaxially with the main gun, a machine gun was mounted; on the turret, there is one more machine gun operated from inside the tank, in addition to an internally mounted 60-mm mortar. Mark IV has a new fire-control system that allows for shooting down helicopters; upgraded tracks; a digital battlefield management system; etc.