.30 carbine. 18" barrel length. SN: 2208967. Parkerized metal finish. Semi pistol grip walnut stock with low wood, a two rivet handguard, and oval stock cutaway. Semi automatic rifle with type 3 stamped rear sight and blade front sight with ear protectors. Item features a flat top bolt, rotary safety, type 3 barrel band bayonet lug, removable magazine with an M marked release. Markings include STD. PRO./2208967 to rear of receiver, U.S. CARBINE/CAL. 30 M1 to front of receiver, and UNDERWOOD/2-44/{flaming bomb} to top of barrel. Stock is only marked with a rack number 557 to bottom of forearm, and 618 crudely scratched to right side of butt.