TRUGLO TFO Handgun Sight Set - Fits Novak LoMount Cut .260/.450 UNMATCHED VISIBILITY in all shooting conditions, night or day; GLOWS IN THE DARKno batteries or light exposure required Available with YOUR CHOICE of GREEN OR YELLOW FIBER in rear sights; Yellow fibers in the rear sight increase contrast and aid in quickly focusing on the brighter green front sight Made of tough, CNC-machined steel with a FORTRESS FINISH COATING for maximum protection CONCEALED FIBER cannot be seen by target; SNAG RESISTANT DESIGN fits standard holsters Compatible Models: 1911Cut Novak LoMount .270 Front / .450 Rear (1911 5" Government 9mm / .40 S&W)