Where the T-64 was never exported from the Soviet Union the T-72 was a parallel design intended for distribution throughout the Soviet Bloc as well as exported through arms sales to other nations. Similar to the T-64, the T-72 has the low, round turret made from cast steel as well as the 2A46M 125mm smoothbore cannon, which, at the time, was the largest mounted on an MBT. In addition, the T-72 mounts a 12.7mm antiaircraft machine gun in the commander's station and a single 7.62mm machine-gun coaxial to the main gun. Though outclassed by the T-80 and T-90 tanks which followed it, the T-72 is currently still in service with the Russian army as well as being produced for export.