The Trijicon 1911 Colt Cut HD Night Sight Set with Orange Front Outline includes a set of two high-definition night sights designed specifically for tactical shooters and hunters. The front sight features three-dot green tritium with an extra tall blade and a photoluminescent aiming point for increased visibility. The rear night sight has a wide, U-shaped notch, and it is outlined in black. The unique configuration of the Trijicon 1911 Colt Cut HD Night Sight Set increases your nighttime visibility and increases the speed of front sight acquisition, even in situations with very low light. The front night sight also features a steep hook to aid in one-handed slide operation.