U.S. Air Force Staff Sgt. Garrett Christ, 633rd Security Forces Squadron combat arms training and maintenance range instructor, checks and scores the targets at the combat arms training and maintenance at Joint Base Langley-Eustis, Va., Jan. 23, 2018. To qualify on their weapon, individuals must fire M-4 Carbines at targets and must hit the target properly a certain number of times to qualify in that weapon. (U.S. Air Force photo by Airman 1st Class Tristan Biese)
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