Springfield 1903A3 Rifle made by Santa Fe. SN 5001901. From the serial number, this particular rifle had improved heat treatment with the introduction of nickel steel made by the REMINGTON ARMS PRODUCTION. 1942-4992001-5784000 (M1903A3) for a TOTAL: 1,084,079 It should be noted that several rifle enthusiasts online have said that these Santa Fe rifles are unsafe due to cast (not machined) parts. (See attached media) The M1903 Springfield, formally the United States Rifle, Caliber .30-06, Model 1903, is an American clip-loaded, 5-round magazine fed, bolt-action service rifle used primarily during the first half of the 20th century. It was officially adopted as a United States military bolt-action rifle on June 19, 1903, and saw service in World War I. It was officially replaced as the standard infantry rifle by the faster-firing semi-automatic 8 round M1 Garand starting in 1937. However, the M1903 Springfield remained in service as a standard issue infantry rifle during World War II, since the U.S. entered the war without sufficient M1 rifles to arm all troops. It also remained in service as a sniper rifle during World War II, the Korean War, and even in the early stages of the Vietnam War. It remains popular as a civilian firearm, historical collector's piece, and as a military drill rifle. M1903A3 (1942)— modified for easier production with stamped metal parts and somewhat different grip and stock (late model Type S stock; no finger grooves). THE 1991 FIREARMS STATES THAT IT HAD PARTS REMOVED FOR SECURITY PURPOSES.