STK105097MA Marine shows his cleared weapon to a marksmanship instructor.
STK105102MMarines verify the battle sight zeroes on their rifles at Camp Leatherneck, Afghanistan.
STK105115MSoldier feeds ammunition to his gunner during M2 .50-caliber weapon training at Camp Shelby.
STK104268MAirman fires a .50 caliber heavy machine gun.
STK104389MMarines engage targets during a ten-day training package.