United States Fire-Arms Manufacturing Company, Inc. (U.S. Fire Arms Mfg. Co., USFA) was a privately held firearms-manufacturing firm based in Hartford, Connecticut. It originally produced single action revolvers, which were clones of the Colt Single Action Army revolver. The factory was located “Under the Blue Dome,” the former site of the Colt East Armory, where Colt’s Manufacturing Company produced many of their classic firearms in the late 19th and early 20th centuries.
The company formally dissolved in January 2017, and the company was the last firearms maker in the Colt’s Armory Complex. The site is now seeking Historic Landmark Status.
The company used to maintain an “Old Armory Custom Shop” which produced custom firearms to order. These firearms featured expensive traditional materials and techniques such as engraving or hand engraving, gold inlay, damascening, case hardening, polishing, and fine metal plating, or other finish.
USFA was the only firearm company still manufacturing in the city of Hartford, Connecticut, when it closed in 2011. Due to space limitations, the company built an additional production location outside of the Blue Dome in order to accommodate their CNC machinery.
USFA was best known for producing firearms based on the Colt Single Action Army revolver, semiautomatic M1911 pistols and rifles such as the Lightning rifle.