MK48 Short 8″ Surface Mount Socket, with stop lug and pin, pintle adapter and pin. (.30 or .50 caliber). (5 1/4″ X 5 1/4″ X 8″. Mounting holes 3 7/16″ OC. 10 lbs). Accepts large pintle or tripod pintle, Browning MG, M60, M240, M249, M60 and any small arms with US tripod or cradle pintle. Comes with stainless steel mounting hardware and gasket. New Condition.