The GAU-19/B is a three-barrel, electrically-driven Gatling gun designed for use on various military platforms, including helicopters and ground vehicles. It fires 0.50 caliber (12.7 mm) ammunition at a high rate, capable of delivering up to 1,000 rounds per minute. This weapon is known for its reliability and effectiveness in providing suppressive fire against both ground and aerial targets. The GAU-19/B is often mounted on aircraft like the MH-60 Black Hawk and can also be used in naval applications. Its design allows for quick barrel changes and easy maintenance, making it a versatile choice for military operations.