The long gun
U.S. Air Force Senior Airman William Scott, 822d Base Defense Squadron designated marksman, keeps a lookout at the military operations in urban terrain (MOUT) village during Exercise GLOBAL EAGLE at Moody Air Force Base, Ga., Oct. 17, 2013. In 2012, the 824th Base Defense Squadron traveled to Stanford Training Area, England, to train with No. 15 Squadron, Royal Air Force Regiment. (U.S. Air Force photo by Senior Airman Jarrod Grammel/Released)