File:M60 machine gun DF-SD-04-04014.jpg

Master Sergeant (MSGT) Marvin Duren, USAF, instructing and acting assistant gunner for Colonel (COL) John R. Dallas, USAF, Commander, 188th Fighter Wing (FW), as he fires the Saco 7.62 mm M60 general purpose machine gun during the Wings Security Forces Training at Arkansas Air National Guard (AANG), Fort Smith, Arkansas. Location: FORT SMITH, ARKANSAS (AR) UNITED STATES OF AMERICA (USA) Camera Operator: SSGT ANDREW F. HAMMONDS JR. USAF Date Shot: 8 Jan 2002

source http://www.dodmedia.osd.mil/DVIC_View/Still_Details.cfm?SDAN=DFSD0404014&JPGPath=/Assets/Still/2004/Air_Force/DF-SD-04-04014.JPG

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