Chain Gun Firing Army pilots fire a 30 mm chain gun from an AH-64D Apache helicopter during an aerial gunnery exercise at Fort Stewart, Ga., Oct. 21, 2016. Army photo by Spc. Scott Lindblom SHARE: Download: Full Size (1.73 MB) Tags: Soldiers, Army, training Credit: Spc. Scott Lindblom VIRIN: 161021-A-UK465-057A.JPG Photo Gallery