Kensight Springfield Recessed Blade 860-602 Tritium Rear Sight Green. 076" Trijicon Green tritium lamps. 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. 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 Tritium Rear Recessed Blade w/0.200in Tall Tritium Contoured Base Front: 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 Tritium Rear Recessed Blade w/0.200in Tall Tritium Contoured Base Front Kensight 991-602: Springfield Recessed Blade 860-602 Tritium Rear Sight Green