スプリングフィールド造兵廠
In 1982, years after the closure of the U.S. Springfield Armory, a commercial firm – Springfield Armory, Inc. – began production of the M1 Rifle using a cast, heat-treated receiver with serial numbers in the 7,000,000+ range, along with commercially produced barrels (marked Geneseo, IL) and G.I. military surplus parts.