Navy HN William Guzmanlanzot, 23, from Manhattan, New York, cleans the lower receiver of his M16-A2 service rifle at the 22 area armory as part of monthly weapon maintenance on Camp Pendleton, Calif., April 3, 2018. Monthly service rifle maintenance ensures weapons are ready and able to be used at a moments notice.

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Keywords: air, america, armed, army, california, camp, corps, defence, employee, federal, force, forces, government, m16a2, marine, marines, military, navy, pendleton, service, serviceman, servicemen, states, united, usa, usmc, weapons