General Dynamics's - GAU19 Gatling HMG (.50Caliber 12.7x99mm) US

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Video 1: General Dynamics - GAU19 Gatling Gun @@Video 2: Triple-Barrel GAU-19' .50Caliber (12.7x99mm) with Automatic_Linkless_Belt_Feed ! (2000 rpm)
 This .50Caliber (12.7x99mm) GAU19 Gatling HMG is a TRIPLE-BARREL gun firing upto 2000 rpm with a AUTOMATIC LINKLESS BELT FEED