The Trijicon 1911 Colt Cut HD Night Sight Set with Yellow Front Outline includes a set of two high-definition night sights designed specifically for tactical shooters and hunters. The front sight is steeply hooked and features a three-dot green tritium sight with an extra tall blade and a photoluminescent aiming point for enhanced visibility. The rear sight feature a very wide and U-shaped notch that is outlined with black. The innovative configuration of this Trijicon 1911 Colt Cut HD Night Sight Set increases your nighttime visibility and increases the speed of front sight acquisition in even situations with very low light.