12.7 Millimetre M2 Heavy Barrel Quick Change Barrel Machine Gun (M2HB QCB)
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