GUNNER REFLECTION The reflection of an M2-50 calibre machine gun barrel can be seen in the visor of a U.S. Marine gunner aboard a CH-53E Super Stallion, Al Asad Air Base, Iraq, May 7, 2008. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 662947-Z-OON29-754.jpg Photo Gallery