Airman Russel Crew, left, and Airman Dalton Shaefer, 363rd Training Squadron F-22 armament apprentice course students, remove a 20mm gattling gun from an F-22 Raptor trainer at Sheppard Air Force Base, Texas, Feb. 28, 2019. There are usually only two reasons for an F-22's gun to be removed. The first being for inspection and maintenance which occurs every 18 months. The second being if the gun gets damaged. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)