Torque Precision manufactures and sells the patent pending FC Hook. The FC Hook is a 2017 California Compliance device that coverts AR rifles into fixed magazine rifles. The FC Hook is the simplest and most cost effective way for firearm manufacturers to covert their full-feature AR rifles for sale to California customers. Torque Precision also manufactures, wholesales, and retails other Mil-spec AR-15 parts and accessories. (less)