The guns have automatic belt feed. The barrel length is 90 calibres (3150 mm). The rate of fire provided by the two barrels is 1100 rounds per minute. Each 35 mm gun has 320 rounds of ready to fire anti-air ammunition and 20 rounds of anti-ground target ammunition. The guns are capable of firing a range of standardised 35 mm ammunition including TP-T, HEI-T, SAPHEI (Semi-armoured piercing high explosive incendiary), APDS-T and Frangible Armour Piercing Discarding Sabot (FAPDS) rounds. The FAPDS rounds have a very high muzzle velocity, greater than 1400 metres per second.
