TRUGLO TFX Pro Tritium and Fiber Optic Xtreme Hangun Sights for 1911 Pistols Reference to Novak LoMount is for compatibility use only. This product is not endorsed by, or affiliated with, Novak Designs, Inc. 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