EX-17 Heligun

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EX-17 Heligun
TypeMachine gun
Mass13,6– 15 kg
Length760 mm

Cartridge7.62×51mm NATO
Caliber7.62 mm
ActionGas operated
Rate of fire4000-6000 rpm
Feed systemBelt

The EX-17 Heligun is a two-barrel 7.62 mm calibre machine gun.[1][2][3] The weapon is gas-operated and was developed by Hughes Aircraft for use in the OH-6 recon helicopter.[1]


The Heligun was developed by Hughes Aircraft as part of a complete package for the OH-6 recon helicopter. It offered a number of significant advantages over the Minigun – it was half the weight, self-powered (not electrically driven), and had a higher 6000RPM firing rate. Ultimately, it was not adopted because the reliability (mean time between stoppages) could not quite be brought up to par, and US Army officials decided that it did not offer enough improvement over the already adopted M134 Minigun to be worth the switch.