Kensight ProGlo Tritium Flat Base Front Night Sight 0.230in Tall Orange. These highly visible front sights incorporate a self-illuminating Green Tritium Dot nestled within a bright Lumi Orange or Green outline. The perfect combination that glows brightly in both low light and well-lit conditions. This isaccomplished with the optimal color contrast between the front sight in ProGlo Lumi Orange color and rear tritium sight with Arctic White outlines or your basic black target rear sight. Based on studies and reviews the extreme contrast helps quickly draw the shooter's eye to the front post which allows quicker sight alignment and targetacquisition. This Front Night Sight comes equipped with a 0.118" wide blade and aFlat Base that is optimal for use with a flat-topped slide or for those who intend to file and blend the front sight base to match the contour of their pistol's slide for a seamless installation. Compatible with standard Novak type front sight dovetail cuts (0.330" x 65 x 0.075") as typically found on both custom and factory 1911 pistols. GUNSMITH INSTALLATION RECOMMENDED Specifications for Kensight ProGlo Tritium Flat Base Front Night Sight: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Illumination Type: Tritium Package Contents: Kensight ProGlo Tritium Flat Base Front Night Sight Kensight 880-823: ProGlo Tritium Flat Base Front Night Sight 0.230in Tall Orange