A Navy SEAL, carrying a Mk23 5.56mm Machine Gun (Stoner 63), moves through deep mud as he makes his way ashore from a boat, during a combat operation in South Vietnam in 1970. (U.S. Navy photograph by PHC A. Hill)
Stoner 63A weapon in Commando light machine gun configuration, same as US S.E.A.L. Mark 23 Model 0 gun. Weapon is shown with complete set of subassemblies and barrels, necessary to convert to other configurations, such as magazine-fed light machine gun or assault rifle.