Locking:by rollers Operation:by short recoil of the barrel (direct action of the gas stream) Ammunition:7.92mm x57 (7.92mm Mauser) Feeding:50 and 250 round strips. Total length:1219 mm Barrel length:533 mm Barrel rifling:4 to the right Mass:11.5 kg on bipod, 18 kg on light anti-aircraft tripod, 32