The Yakushev-Borzov YakB-12.7mm is a remotely controlled 12.7x108mm caliber four-barrel Gatling gun developed by the Soviet Union for the Mil Mi-24 attack gunship and low-capacity troop transporter (with 1470 rounds), which can also be mounted in GUV-8700 machine-gun pods (with 750 rounds). It is unique in the world of "gatling-style" weapons in that it does not require electrical power to function. It was subsequently replaced by the 23mm and 30mm cannon.