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The M242 Bushmaster chain gun is a 25 mm (25×137mm) single-barrel chain-driven autocannon. It is used extensively by the U.S. 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 primary component of the Mk 38 is the 25 mm M242 Bushmaster. It is an externally-powered, chain-driven gun. The Bushmaster uses an electric motor to drive the moving parts for ammunition feeding, loading, firing, extraction, and cartridge ejection. [2] The mass of the M242 on the Mark 38 MGS is 109 kg (240 lb). [3]
The M242 25 mm chain gun. A chain gun is a type of autocannon or machine gun that uses an external source of power to cycle the weapon's action via a continuous loop of chain, similar to that used on a motorcycle or bicycle, instead of diverting excess energy from the cartridges' propellant as in a typical automatic firearm. [1] [2]
Japanese 25×163mm ammunition from a post-war US technical manual A diagram of the M791 25×137mm round. Several sub-types of the NATO 25 mm ammunition are available—the most common being armor-piercing, high-explosive, sabot, tracer, and practice rounds. Cartridges are usually composed of a combination of the aforementioned categories. For ...
Its goal was to fit a FMC large vertical slab-sided turret with a chamfered front called "Sharpshooter", onto a modified Type 86 hull. It was to be armed with a 25 mm M242 Bushmaster autocannon with a two plane stabilization system and a 7.62 mm M240 coaxial machine gun (on the left hand side of the main gun). The vehicle carries 344 rounds for ...
A M242 Bushmaster chain gun is fitted on a LAV III's gun turret, with a machine gun placed atop the turret. The LAV III is fitted with a two-man turret, armed with the M242 Bushmaster 25 mm caliber chain gun and a coaxial 7.62-mm machine gun. One more 5.56 mm or 7.62 mm machine guns is positioned on top of the turret.
It is a derivative of the 25 mm M242 referenced above and uses 70% of the same parts as the M242. The Mk 44 Bushmaster II is the standard primary armament of the Bionix-II AFV currently in service with the Singapore Army, the KTO Rosomak in Polish service as well as that of the CV90 AFVs in Finnish, Norwegian and Swiss service.
The ship's armament consists of a single 25 mm M242 Bushmaster cannon fitted to an MSI DS25 stabilised mount, two .50 calibre machine guns, and a number of small arms. These are intended for self-defence against other smaller craft, and for ocean patrol duties (for example the intercepting of suspicious civilian craft) during a naval blockade. [20]