FN Manufacturing, LLC provides precision manufacturing services to the aerospace, firearms, and other industries. It offers machining, assembly and light fabrication, heat treatment, surface finish, training, and research and development services. The company also provides gun barrels used in the U.S Military and law enforcement around the world. In addition, it supplies small arms. The company was founded in 1980 and is based in Columbia, South Carolina. FN Manufacturing, LLC operates as a subsidiary of FN Herstal, S.A.