Kensight Ruger SR1911 Adjustable Tritium Night Sight Set Orange. It has rounded fully serrated blade. Fits all Ruger SR1911s with the adjustable sight dovetail. No modification to the slide is necessary (only minor fitting). Available with 0.076" Trijicon Green or yellow tritium lamps. This rear sight is paiRed with our ProGlo tritium night sight with a lumi Orange or Green outline that comes with a 0.118'' wide blade and a contoured base that keeps your round-top slide and the sight's dovetail uniform resulting in a clean installation that requires little (if any) filing to accomplish. 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. Specifications for Kensight Ruger SR1911 Adjustable Tritium Night Sight Set: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Front Blade Height: 0.2 in Illumination Type: Tritium Package Contents: Kensight Ruger SR1911 Adjustable Tritium Night Sight Set Kensight 982-263: Ruger SR1911 Adjustable Tritium Night Sight Set Orange