The MKE 120 mm tank gun is a Turkish 120 mm 55 caliber smoothbore gun based on CN08 120 mm gun produced by the Turkish company Mechanical and Chemical Industry Corporation, used on the Turkish Altay tank. The 120-millimeter (4.7 in) gun has a length of 6.6 meters (22 ft). The gun can fire ammunition with high muzzle velocity. The gun is made of chrome-plated "special steel".