Kensight DFS 1911 Defense Fixed Rear Sight Tritium Insert Night Sight w/ Recessed Blade Black. This rear sight manufactured by the experts at Kensight is designed to include two 0.076" Trijicon green tritium lamps and is wire-EDM cut from a single block of 4140 steel. With distinctive grasping serrations the Kensight DFS 1911 Defense Fixed Rear Sight Tritium Insert Steel Night Sight with Recessed Blade to give you a chance at a nice steady shot on your mark. Specifications for Kensight DFS 1911 Defense Fixed Rear Sight Tritium Insert Night Sight w/ Recessed Blade: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Front Blade Height: 0.2 in Illumination Type: Tritium Condition: New Package Contents: Kensight DFS 1911 Defense Fixed Rear Sight Tritium Insert Night Sight w/ Recessed Blade Kensight 860-602: DFS 1911 Defense Fixed Rear Sight Tritium Insert Night Sight w/ Recessed Blade Black