G3A3 Share definition Flag Assault rifle developed by Heckler & Koch. 20-round clip chambered for 7.62x51mm NATO. Said to be very accurate. "The G3A3 is a fine gun in Raven Shield. But the MP5SD5 serves me better it seems." -me G3A3 by Dave April 1, 2004 0 0 Get merch Get the G3A3 mug. Buy Now — $32.95 See more merch
