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Jan 29, 2015

Sgt. Robert T. Larsen, left, explains how the bolt and operating rod assembly of an M240B medium machine gun works Jan. 21 during Integrated Training Exercise 15-2 at Marine Air Ground Combat Center, Twentynine Palms. Marines completed machine gun refresher classes as part of pre-training for ITX. Larsen is a small arms repairer from Vancouver, Washington, assigned to 4th Marine Regiment, 3rd Marine Division, III Marine Expeditionary Force.

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