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XM214
XM214 Microgun
Country of origin

United States

Manufacturer(s)

General Electric

Production began

1966

Weapon type

Gatling-Type Machine Gun

Caliber

5.56x45mm NATO

Overall length

732mm

Weight

10.2kg

Magazine/Cylinder capacity

Belt

Cyclic rate

400/6000/10,000rpm


The XM214 is a prototype 5.56 mm rotary barreled machine gun. It was designed and built by General Electric, but it never reached mass production. Also known as the Microgun, the XM214 was a scaled-down version of the M134 Minigun, firing M193 5.56 x 45 mm ammunition.

OriginsEdit

The idea of a man-portable, multiple barrel firearm existed during WW2 when the Neal submachine gun, a .22LR calibre rapid fire SMG capable of firing 3000RPM developed for agile hit and run tactics. The Neal submachine gun was self operated using a blowback operation with a bolt that recoiled against a grooved drum rotating the barrel cluster, much to that of a Webley Fosbery automatic revolver.

DevelopmentEdit

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, an external 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.

Microgun PodEdit

An 5.56mm Microgun Pod was also developed for external use on light aircraft and helicopters. The unit had an ammunition capacity of from 1,500 to 3,500 rounds and loaded weight of 186 to 300 pounds. The feed system was linkless, via a helical drum, with a nominal rate of fire of 6,000 rpm. However, adjustments to 1,000 or 10,000 rpm were possible, if desired. Power could be provided by a built-in battery pack, or from the aircraft itself.

GalleryEdit

See alsoEdit

Self-operated
Non-NATO
General

ReferencesEdit

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