The basic M52B is worn over the UNSCDF GCU and incorporates chest, back, side, and groin protection, with additional collar, upper arm, and upper leg protectors available as required. Total weight comes in at 13.6 kilograms, and while this is heavier than the earlier M51A Ballistic Assault Vest, it is lighter than the M27A Body Armour it replaced, and actually provides superior protection, though only over vital areas such as the torso. The design is intended to take the weight of the vest off the shoulders and move it to the lower torso.