Development
The XM214 was first developed for aircraft applications. Later General Electric developed it into a man-portable weapon system, known as the GE Six-Pak. The complete Six-Pak system weighed 85 pounds (38.5 kg) with 1,000 rounds of ammunition, comparable in weight to some heavy machine guns. The basic gun in the Six-Pak weighed 27 pounds, or 12.2 kg. The system could be carried by a team of two soldiers and mounted either to an M122 tripod or a vehicle's pintle mount. Length overall is 104.1 cm, gun only is 68.6 cm long. Width (including ammunition case) is 44.4 cm. Sighting was usually by optical telescope.
The Six-Pak consisted of the XM214, the ammunition package, and the power module, and the ammunition module consisted of two 500 round, factory packed, and disposable cassettes mounted to a holding rack. Linked ammunition was fed through a flexible chute to the gun; when the first cassette was empty, ammunition would then feed from the second cassette, tripping a visible signal that a new cassette needed to be added to the rack.
The power module contained a 24 volt nickel-cadmium battery, a 0.8 horsepower (0.60 kW) motor, and solid state electronic controls. Unless the battery was plugged into a vehicle's power supply, the battery's charge would be depleted after 3,000 rounds. The system could be broken down quickly into two portable loads of roughly 42 pounds apiece. This was accomplished by means of a quick-release fitting at that end of the belt chute fastened to the gun.
Electronic controls contained a burst limiter and handled the automatic clearing of the gun after bursts. Using the electronic controls, the weapon's rate of fire could be adjusted from 400 rpm all the way up to 4,000 rpm. Later editions of Jane's Infantry Weapons claimed a theoretical cyclic rate of up to 6,000 rpm. George Chinn, author of The Machine Gun Volume V, contended that the XM214 prototype had a rate of fire of up to 10,000 rpm, but the man-portable Six-Pak was limited to 4,000 rpm.
Read more about this topic: XM214 Microgun
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