U.S. Marine Corps Lance Cpl. Djourdan A. Stephens arms a GAU-21 .50 caliber machine gun at Camp Dwyer, Helmand province, Afghanistan, Nov. 27, 2012. U.S. Marine Corps Lance Cpl. Djourdan A. Stephens arms a GAU-21 .50 caliber machine gun at Camp Dwyer, Helmand province, Afghanistan, Nov. 27, 2012. SHARE: Download: Full Size (2.01 MB) Tags: Photo Essays Credit: VIRIN: 540313-M-FOX87-203.jpg Photo Gallery