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. Until 2011, United States Fire-Arms Manufacturing Company, Inc. was known for producing single action revolvers, which were clones of the Colt Single Action Army revolver.[5] The factory was located "Under the Blue Dome", in the East Armory building of the former Colt Armory complex, where Colt's Manufacturing Company produced many of their classic firearms in the late 19th and early 20th centuries.
In 2011, the company ceased production of replica colt revolvers, and publicly rebranded itself as ZiPFactory.com, based on its titular USFA ZiP .22 firearm. The company formally dissolved in January 2017,[6] and the company was the last firearms maker in the Colt's Armory Complex. The site is now seeking National Historic Landmark status.
USFA was the only firearm company still manufacturing in the city of Hartford, Connecticut, when it closed in 2011.[4] Due to space limitations, the company built an additional production location outside of the Blue Dome in order to accommodate their CNC machinery.
In 2011, USFA abandoned their production of Colt revolver replicas and went to the exclusive manufacturing of their ZiP .22 pistol.[7] The ZiP .22 proved to be an unreliable firearm and lacked consumer interest. As a result, USFA is now out of business.[6]