Aviation Ordnanceman 1st Class Justin L. McCray replaces the barrel of a M-240B machine gun during a live-fire exercise aboard t

101028-N-5538K-360 
SOUTH CHINA SEA (Oct. 28, 2010) Aviation Ordnanceman 1st Class Justin L. McCray replaces the barrel of a M-240B machine gun during a live-fire exercise aboard the forward-deployed amphibious assault ship USS Essex (LHD 2). Essex is part of the forward-deployed Essex Amphibious Ready Group and is underway in the western Pacific Ocean. (U.S. Navy photo by Mass Communication Specialist 3rd Class Casey H. Kyhl/Released)

101028-N-5538K-360 
 SOUTH CHINA SEA (Oct. 28, 2010) Aviation Ordnanceman 1st Class Justin L. McCray replaces the barrel of a M-240B machine gun during a live-fire exercise aboard the forward-deployed amphibious assault ship USS Essex (LHD 2). Essex is part of the forward-deployed Essex Amphibious Ready Group and is underway in the western Pacific Ocean. (U.S. Navy photo by Mass Communication Specialist 3rd Class Casey H. Kyhl/Released)