YakB-12.7 (top), YakBYu-12.7 (bottom)

Other Pictures:
YakB-12.7 Mounted in a HIND Attack/Transport helicopter

No Info.

Operation:
gas operated

Cartridge:
12.7x108 mm

Weight:
45 Kg YakB-12.7, 60 Kg YakBYu-12.7

Rate of fire:
4 000 - 5 000 Rpm

Muzzle Velocity:
810 m/s