 For the 120S Project the M1A1 turret and M60A1 series chassis were leased from the US Army.The turret is mated to the existing M60 chassis using an adapter ring that allows the use of the M1A1 wire race ring with no turret modifications.It consisted of a functional M1A1 turret, M1 turret gear box, hydraulic pump and an M1A1 slip ring adapter.