12,7mm HMH NSV:

The 12.7mm NSV machine gun forms the armament of tanks, armored personnel carriers and mechanized units. The weapon is a means of anti-aircraft defense of tank and mechanized units and serves for the immediate protection of one's own formation. The 12.7 mm machine gun is designed to destroy aerial targets and can also be used to silence and destroy anti-tank, lightly armored and group enemy targets. It is mounted on a special cradle and can be fired from it using an electromagnetic or mechanical trigger. When used with mechanized units (outside the carriage on a vehicle), it is necessary to use a special stand 6T7 when shooting. Shooting from a machine gun can be conducted in small (4 to 6 shots) or large (10 to 15 shots) bursts. Up to 100 rounds can be fired continuously from the machine gun.