65 Series Post War Op Rod. This op rod is correct for Springfield Armory Grands built from 1952 to the end of production. Commonly called the Post War or Korean War Era Garands. These Post War Era Op Rods are really nice, dark gray parkerizing is at 99%. Check out the wear numbers, Piston .526, Lug .096. Excellent condition!! Only have a limited number, get them while they last!