The weapon has an effective range of 3,000 metres (9,800 ft), depending on the type of ammunition used. The standard rate of fire is 200 rounds per minute. It can also apply suppression fire against exposed troops, dug-in positions, and occupied built-up areas. The gun can destroy lightly armored vehicles and aerial targets (such as helicopters and slow-flying aircraft). The term "chain gun" derives from the use of a roller chain that drives the bolt back and forth. It is fed by a metallic link belt and has dual-feed capability. It is an externally powered, chain-driven, single-barrel weapon, that may be fired in semi-automatic, burst, or automatic modes. As of 2019, Northrop Grumman Innovation Systems produces the gun. In 2002, it was sold again to Alliant Techsystems, which merged with Orbital Sciences Corporation in 2015 to form Orbital Science ATK and was, in turn, bought out by Northrop Grumman in 2018. McDonnell Douglas Helicopters acquired Hughes Helicopters in 1985, and merged into Boeing Corporation in 1997. Hughes Helicopters in Culver City, California was the original designer and manufacturer. military, such as in the Bradley fighting vehicle, as well as by other NATO members and some other nations in ground combat vehicles and various watercraft. The M242 Bushmaster chain gun is a 25 mm (25×137mm) single-barrel chain-driven autocannon. Cyclic: 200rpm with 1hp or 500rpm with 8hp.Single barrel (progressive RH parabolic twist)Įxternally powered, chain driven, Open bolt
Northrop Grumman Innovation Systems (2018–present) McDonnell Douglas Helicopters (1985–2002) Army press photo of the M242 Bushmaster chain gun
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