A little bit of elbow grease
U.S. Air Force Senior Airman Joshua Walk (left) and Staff Sgt. Jeremy Coppock disassemble a M61-A1 20mm gatling gun during an inspection on Seymour Johnson Air Force Base, N.C., April 19, 2012. During inspection, the weapon is checked for wear and tear, corrosion, and specific rounds fired. Walk, 4th Equipment Maintenance Squadron aircraft armament systems journeyman, hails from State College, Pa. Coppock, 4th Equipment Maintenance Squadron aircraft armament systems craftsman, is from Tuscon, Ariz. (U.S. Air Force photo/Airman 1st Class John Nieves Camacho/Released)