Airman 1st Class Thomas Clark, left, and Airman 1st Class Dalton Schaefer, 363rd Training Squadron F-22 armament apprentice course students, remove the barrels off an F-22 Raptor's 20mm gattling gun at Sheppard Air Force Base, Texas, Feb. 28, 2019. The barrels on an F-22 aircraft's gattling gun are actually shaved down to remove some weight, improving the performance of the Raptor in the air. (U.S. Air Force photo by Airman 1st Class Pedro Tenorio)