U.S. Air Force Staff Sgt. William Delphia, 633rd Security Forces Squadron combat arms training and maintenance instructor, inspects an M9 Beretta pistol holster before the firing portion of class at Langley Air Force Base, Va., Aug. 13, 2013. The CATM classes are broken down into an instruction portion and a firing portion. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)