JOINT BASE LANGLEY-EUSTIS, Va. – U.S. Air Force Staff Sgt. Michael Tack, 633d Security Forces Squadron combat arms instructor, makes iron-sight adjustments for an Airman during the practice rounds of the firing portion of the M-4 carbine rifle qualifications during a Combat Arms Training and Maintenance qualification course at Joint Base Langley-Eustis, Virginia, Nov. 30, 2022. The red combat arms cap is an easy way to quickly identify who is an instructor and be able to receive help quickly if needed. (U.S. Air Force photo by Airman 1st Class Olivia Bithell)