Marine Corps Pfc. Mark A. Aguinaga, a low altitude air defense (LAAD) gunner with Bravo Battery, 2nd LAAD, moves ammunition prior to conducting a machine gun range at the National Training Center in Fort Irwin, Calif., Jan. 27, 2018. Marines with 2nd LAAD conducted a machine gun range to enhance proficiency with the M240B and M2 .50 cal. machine guns and improve combat readiness. ( Marine Corps photo by Cpl. Koby I. Saunders)

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