Kensight Ruger SR1911 Adjustable Flat Base Tritium Night Sight Set Black. 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). Includes Kensight standard front sight with a Tritium dot insert. This rear sight comes paiRed with our standard flat front sight with a serrated blade. The set is sold with a 0.200'' tall blade but blade heights from 0.150'' to 0.220'' are available upon request. Compatible with Novak type front sight dovetail cuts (0.330" x 65 x 0.075") as typically found on both customized and factory 1911 pistols. Specifications for Kensight Ruger SR1911 Adjustable Flat Base 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 Flat Base Tritium Night Sight Set Kensight 962-263: Ruger SR1911 Adjustable Flat Base Tritium Night Sight Set Black