TPRCSN Barrel, 9MM, Black, Thread Protector, Threaded, Glock 48, Nitride TP-G48B-XTBL True Precision is located just outside Atlanta Georgia and was formed so that individuals will have access to high quality" US made" parts and components for a wide array of firearms. True Precision barrels" slides" and parts are designed for personal defense first. All parts are engineered" machined" and made from the ground up here in the USA by Americans and in partnership with only American companies.