Photo G2541: SP/4 Dennis M. Taylor of B Company, 720th MP Battalion, holding the M79 "Thumper" 40mm Grenade Launcher in the company compound on Long Binh Post, Vietnam 1969. Courtesy of SP/4 Dennis M. Taylor, B Company, 720th MP Battalion, 89th MP Group, 18th MP Brigade, Long Binh Post, 1969-1970.