U.S. Air Force Senior Airman J.T. Owen, 20th Equipment Maintenance Squadron armament maintenance team member, assembles a M61A1 Vulcan 20 mm rotary cannon access unit at Shaw Air Force Base, S.C., Aug. 2, 2018. The unit provides the 20th Fighter Wing’s F-16CM Fighting Falcon weapon interface with a means to accept the munition and allows for a smooth installation. (U.S. Air Force photo by Senior Airman Christopher Maldonado)