Crucible Cleaning Marine Corps recruit Tyler Steeley cleans his weapon during the Crucible at Marine Corps Recruit Depot Parris Island, S.C., June 24, 2016. Marine Corps photo by Lance Cpl. Colby Cooper SHARE: Download: Full Size (3.87 MB) Credit: Lance Cpl. Colby Cooper VIRIN: 160624-M-KK705-049A.JPG Photo Gallery