Kensight Springfield Recessed Blade Tritium Rear Sight Black 971-626. 076" tritium lamps. Available in Green or yellow. This sight is elevation adjustable only. Fits certain model Springfield Armory Colt Wilson Combat STI International Les Baer Custom Rock River Arms Dan Wesson 1911s and many others. 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 Recessed Blade Tritium 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 Package Contents: Kensight Springfield Recessed Blade Tritium Rear Sight Kensight 971-626: Springfield Recessed Blade Tritium Rear Sight Black