M1, M1A1, And The M1A2
There are three central types of M1 Abrams that have been developed and deployed: the M1, M1A1, and the M1A2. The M1 is the fastest of the group with a 45 mph speed, and the M1A2 is the heaviest at 68.7 tons. The M1A2 tank was built from its inception to have standard depleted uranium armor.M1A1 tanks still in active duty received the armor as an upgrade beginning in1988. The armor is very dense.