Kensight Springfield Adjustable Tritium Dot Rear Sight Black 981-255. This makes it ideal for competition shooting i.e. Bullseye. Fits certain model Charles Daly Para-Ordnance Springfield Armory Nowlin Olympic Arms and High Standard 1911 slides with adjustable sight cut. This rear sight comes paiRed with our Springfield tritium contoured front sight with a serrated blade. For this front sight blade heights from 0.150'' to 0.220'' are available upon request. Compatible with Novak type front sight dovetail cuts (0.340" x 60 x 0.075") as typically found on both customized and factory 1911 pistols. Specifications for Kensight Springfield Adjustable Tritium Dot Rear Sight: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Illumination Type: Tritium Illumination Color: Orange Package Contents: Kensight Springfield Adjustable Tritium Dot Rear Sight Kensight 981-255: Springfield Adjustable Tritium Dot Rear Sight Black