Ed Brown Products HD XR Front Night Sight 1911 Orange Black. The green tritium night sight is ringed in bright photo-luminescent paint. This is the ideal combination for high visibility day or night and will retro perfectly to any Ed Brown 1911 in service. Combined with any style of plain black rear sight this unique combination increases visibility and quickens front sight acquisitioneven in transitional lighting. Green tritium lamps are warranted for 12 years from date of manufacture by Trijicon. Available in orange and yellow. Specifications for Ed Brown Products 1911 HD XR Front Night Sight: Manufacturer: Ed Brown Products Gun Model: 1911 Color: Black Gun Type: Pistol Front Blade Height: 0.18 in Illumination Type: Tritium Illumination Color: Orange Mount Type: Dovetail Package Contents: Ed Brown Products 1911 HD XR Front Night Sight Ed Brown Products 1620-HDXR-O: HD XR Front Night Sight 1911 Orange Black