An airman prepares to fire his weapon during an M9 qualifications course at the 349th Security Forces Squadron Combat Arms Training range on Apr. 17, 2016 at Travis Air Force Base, Calif. The course consisted of aircrew members from the 70th Air Refueling Squadron, 79th ARS, 301st Airlift Squadron and the 312th AS. (U.S. Air Force photo/Airman 1st Class Shelby R. Horn)