GAU-3 Eliminator
From Command and Conquer Wiki
The GAU-3 Eliminator was a popular assault rifle with the GDI forces in the First Tiberium War. Derived from the Calico M951(S), designed by Calico Light Weapons Systems (an American based company) it was preferred over other rifles due to its large 50 or 100 round magazines. The factor allowing it to maintain such a large ammo capacity was a unique helical magazine. GDI weapons techs, even to this day, have been loath to give the specifics of its conversion to automatic/burst firing modes and the reasons for its classification as a chaingun.
It weighed 2.25 lb unloaded, 4 lb (with 50 round magazine) or 8lb (with 100 round magazine) loaded. It had a maximum range of 300 yards, muzzle velocity of 1290 ft/s and based on a roller delayed blowback action.
It was replaced by the Cobretti AR-70 in the closing stages of the war and eventually the M16 Mk. II. However, Nod militants, even in 2047, continue to use the weapon, a testament to its effectiveness.
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