Caliber N/A. 24" barrel length. SN: 1508. Blued metal finish with synthetic stock and wood top forend. Non functional dummy training rifle mounting sling swivels. Receiver marked RIFLE/DUMMY/MK5-0/1508 on top in front of bolt. Item mounts original rear sight with front sight hood but no post. Bolt has been pinned and welded. Left side of stock bears illegible carving.