U.S. Marine Corps Lance Cpl. Brian Bucior, motor transport mechanic, Marine Wing Support Squadron 471, cleans the gas piston of a M240G medium machine gun after a convoy conducted aboard the Marine Corps Air Ground Combat Center Twentynine Palms, Calif., as part of Integrated Training Exercise 4-14, June 11, 2014. Marines from MWSS 471 are training to be part of a Marine Air Ground Task Force.