Kensight Kimber Serrated Blade Fixed Rear Sight Black. The rear blade is partially serrated and has two Green tritium dots on each side of the notch that are 0.076in diameter with a thick white outline. The entire sight is wire-EDM cut from a single block of 4140 steel. Distinctive grasping serrations are also wire-EDM cut into the sides of the sight. Fits all Kimber 1911 autos with factory-supplied fixed sights. This will not fit any Kimber cut with an existing adjustable rear sight. Specifications for Kensight Kimber Serrated Blade Fixed 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 Package Contents: Kensight Kimber Serrated Blade Fixed Rear Sight Kensight 960-222: Kimber Serrated Blade Fixed Rear Sight Black