Manufactured in 1955. Standard blade front and fully adjustable peep rear sights, "3 55" dated "SA" marked barrel, standard receiver heel markings, stamped trigger guard, relief cut "SA" operating rod, and "SA" marked bolt carrier, hammer, trigger group, and safety. Smooth pistol grip stock with DOD "eagle" cartouche on the left side, circled "P" on the underside of the wrist, and stamped checkered trap door buttplate. With CMP Certificate of Authenticity identifying the rifle by serial number. Includes CMP certificate.