From the HobbyMaster's Tech Power Seriesis this M1A1HA Abrams main battle tank, which proved itself more than worthy during the Gulf Conflict. The M1 Abrams, officially commissioned by the US military in 1980, was designed totally different from previous post-WWII US military tanks. Though fitted with the same 105mm cannon as the M60, the M1 was powered by a gas turbine engine and was fitted with spaced armour. In 1984, the M1A1 was developed with a 120mm smoothbore cannon, and a further variant the M1A1HA (HA stands for Heavy Armor) was later developed featuring depleted uranium armour. The M1A1HA model had a protection equivalent to 600 mm against kinetic energy ammunition, and 1,300 mm against chemical energy warheads.