BREN Mk 1 and Mk 2 * Ammunition:.303 British (7.7x56mm R)/ 8mm Mauser (China) * Total length:1, 156 m * Barrel:63.5cm * Mass (empty weapon):10.2 kg * Mass of the full magazine:1.05 kg * Mass (weapon loaded):11.25 kg * Magazine:30 rounds * Theoretical rate of fire:500 rounds/min. The BREN