
Its primary weapon was a heavy laser cannon mounted in the top turret that provided the tank with 360 degrees of long-range firepower powerful enough to destroy an All Terrain Tactical Enforcer of the Grand Army of the Republic. The AAT-1 was an extremely versatile vehicle designed to handle nearly any opposition encountered on the battlefield. The cost of the AAT-1 was 75,000 credits. Due to its heavy armor, the AAT-1 was neither quick nor agile on the battlefield, boasting a maximum speed of 55 kilometers per hour. The tank could carry up to six additional droids via handholds and footholds on the hull, as well as ten metric tons of cargo.

It was operated by a crew of four, one B1 pilot battle droid who drove the vehicle, two gunners who controlled the side weapons, and one commander who would fire the main cannon as well as give orders and provide visual confirmation of the sensor readings to the crew he could differ between an OOM command battle droid, a tactical droid or even an organic.

It was a relatively small and compact tank clocking in at 9.19 meter in length, and consisted of a heavily armored, spade-shaped lower hull topped with a lighter, secondary hull and rotating turret. The Armored Assault Tank Mk I, otherwise known as the AAT-1 and manufactured by Baktoid Armor Workshop, was the Confederacy of Independent Systems' primary infantry support vehicle used during the Clone Wars against the Galactic Republic. " Adjust the stabilizers, we're going over!" ―An AAT Driver Battle Droid
