Kensight Rollo 1911 Low-Profile Adjustable Tritium Night Sight Set Orange. Same range of windage and elevation adjustments as our BMCS sights but easier to carry. Can be mounted on the 1911 slide in the old National Match style that was popular in the early 1960s or for carry use mounted slightly forward of the rear edge of the slide using the Caspian Arms Rollo cut. 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 Rollo 1911 Low-Profile 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 Illumination Type: Tritium Package Contents: Kensight Rollo 1911 Low-Profile Adjustable Tritium Night Sight Set Kensight 980-098: Rollo 1911 Low-Profile Adjustable Tritium Night Sight Set Orange