 The M4A2s used by the Red Army were considered to be much less prone to catch fire due to ammunition detonation than their T-34/76, but had a higher tendency to overturn in road accidents and collisions or because of rough terrain due to their higher center of gravity.Under Lend-Lease, 4,102 M4A2 medium tanks were sent to the Soviet Union.Of these, 2,007 were equipped with the original 75 mm main gun, with 2,095 mounting the more-capable 76 mm gun.