Kensight Kimber Adjustable Tritium Rear Sight 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). Available with 0.076" Trijicon Green or yellow tritium lamps. Includes our standard front sight with a Tritium dot insert. This rear sight comes paiRed with our standard contoured 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 Kimber Adjustable Tritium Rear Sight: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Front Blade Height: 0.16 in Illumination Type: Tritium Mount Type: Dovetail Package Contents: Kensight Kimber Adjustable Tritium Rear Sight Kensight 970-263: Kimber Adjustable Tritium Rear Sight Black