In January 1940, Singer Manufacturing Company, an Elizabeth, New Jersey-based producer of sewing machines, and Harrington & Richardson Arms Company of Worcester, Massachusetts, received educational orders for the production of 500 M1911A1 pistols and related tools.
Both Colt and Springfield Armory provided technical assistance to the two contractors. Singer-produced pistols were delivered to Springfield Armory by December 1941, and these were distributed to Air Force personnel. The company was given a contract for an additional 15,000 pistols, but Singer's production of artillery fire control directors was deemed a higher priority, and this contract was later canceled. Due to their high quality and limited numbers, Singer M1911A1 pistols are highly prized by modern collectors.