U.S. Air Force Staff Sgt. Jason Jones, a 56th Security Forces Squadron Combat Arms Training and Maintenance instructor, discusses how to adjust the sights of the M4 Carbine for more accurate shots July 31, 2018 at Luke Air Force Base, Ariz. CATM instructors take time to work with each Airman to help perfect their aim and skill. (U.S. Air Force photo by Airman 1st Class Aspen Reid)