The obj 775 had an extremely low profile, with a crew of two which sat in an isolated compartment in the turret. The main armament was a 125 mm rifled missile launcher, with a maximum range of 4 km for the "Rubin" anti-tank guided missiles, and 9 km for the "Bur" surface-to-surface missiles. It had a rate of fire of 4-5 rounds/min for the "Rubin", and 8-10 rounds/min for the "Bur". Both munitions were guided by an infra-red beam. The "Rubin" anti-tank missiles were capable of penetrating 250 mm