TRUGLO TFX Pro Tritium and Fiber Optic Xtreme Hangun Sights for 1911 Pistols Impervious to oils, chemicals, cleaning solvents and ultra-sonic cleaning processes Provides great visibility in all shooting conditions Utilizes quality Swiss tritium for maximum brightness Front sight FOCUS-LOCK for fast and accurate shooting Reference to Novak LoMount is for compatibility use only. This product is not endorsed by, or affiliated with, Novak Designs, Inc.