Senior Airman Ryan Treadwell, a native of Concord, Calif., and a member of 673d Security Forces Squadron, live-fire drills under a barricade Nov. 9, 2016, at Joint Base Elmendorf-Richardson. Airmen of 673d SFS went to JBER's Statler/Newton Small Arms Range for M4 Carbine Proficiency Firing training, which teaches them to maneuver behind cover while accurately engaging targets. ( Air Force photo by David Bedard)

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Keywords: air, carbine, force, forces, m4, profire, security, training