Checking equipment for life
Tech. Sgt. Ryan McMaster cleans an M-9 pistol before putting it back into a secure gun rack Dec. 12 at Bagram Air Base, Afghanistan. Sergeant McMaster, a 774th Expeditionary Airlift Squadron aircrew life support technician, manages and performs inspections, maintenance and adjustments of aircrew life support equipment. (U.S. Air Force photo/Staff Sgt. Joshua T. Jasper)