U.S. Marine Corps photo by Sgt. Anthony Guas/Released 070430-M-0000A-001.jpg
Apr 30, 2007
Sgt. Joshua Groh, a crew chief and mechanic for Marine Heavy Helicopter Squadron 362, tries to repair a M2 .50 Caliber Heavy Machine Gun during a flight, May 30. The Marines were testing the weapons systems at a local range.
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