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GAU-21 / A .50 cal Machine Gun

The M3M flexible machine gun has been adopted by USN under the designation GAU-21/A for use on helicopters. The GAU-21/A is also being used by the United States Marine Corps to upgrade from the XM218 .50 cal. machine gun for the CH-53E.

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  1. JPCICVET
    JPCICVET Jun 21, 2011

    Seems to pull to right sometimes--Is that the ammo getting briefly hung up on the box?

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