160831-N-UD666-214 PACIFIC OCEAN (August 31, 2016) Sailors assigned to the security department aboard the aircraft carrier USS Carl Vinson (CVN 70) participate in a low-light M4A1 carbine assault rifle qualification course on the flight deck. Carl Vinson is currently underway undergoing Board of Inspection and Survey (INSURV). (U.S. Navy photo by Mass Communication Specialist Seaman Daniel P. Jackson Norgart/Released)