Staff Sgt. Angel Madrigal, 9th Security Forces Squadron combat arms instructor, instructs a M-9 weapons qualification course at Beale Air Force Base, Calif., Feb. 11, 2014. Course highlights include: assembly, disassembly, loading, unloading, proper firing form, aiming, breathing techniques, sight picture, preventive maintenance and weapons safety. (U.S. Air Force photo by Staff Sgt. Robert M. Trujillo/Released)