24: Winchester M1 Garand in 30 Cal with 24" Barrel - Man. 1941. The M1 Garand is a .30-06 caliber semi-automatic rifle that was the standard U.S. service rifle during World War II and the Korean War. This rifle was born in 1941 and it has a barrel that is marked 3-61. The walnut stock is good and it and has a good parkerized finish on the receiver and barrel. The rifle is a gas-operated, 8 shot clip-fed, semi-automatic rifle. This gun is in very good condition overall. Serial #: 1239535. Estimated Value: Low: $2,000 High: $2,400