12.7 Millimetre M2 Heavy Barrel Quick Change Barrel Machine Gun (M2HB QCB)
This machine gun is used as the primary or secondary armament on various vehicles and watercraft in the offensive, defensive, suppressive and neutralising roles.
It can also be used in the ground role, fired from a tripod. On vehicles and watercraft, it is used to provide close range fire support against surface and air targets. When mounted on a tripod, it can be used in the direct fire role or the indirect fire role using observation of fall of shot.
It is an automatic, belt fed, air-cooled, spring and recoil-operated weapon, also capable of firing single shots. It fires from a positively locked breech position and is capable of a sustained high volume of fire. The maximum effective range in the direct fire role is 2000 metres and in the extended range role 6800 metres.
Calibre - 12.7 millimetres
Weight - 25 kilograms (M2HB QCB)
Length - 1656 millimetres
Barrel Length - 1143 millimetres
Muzzle Length - Varies with ammunition nature