Kensight DFS Serrated Blade Fiber Optic Fixed Rear 1911 Sight Black. Distinctive grasping serrations large relief cut for an excellent silhouetted sight picture. This rear sight comes paiRed with our contoured base fiber optic blade front sight which incorporates a bright fiber optic rod that draws the shooter's eye to the front post for sight acquisition and recovery. Wire-EDM machined from 4140 chrome moly steel and heat treated to a hardness of RC 38-40 this front sight is definitely going to withstand the test of time. This sight comes with a 0.100'' wide blade that is partially serrated. the Fiber optic rod is 0.060'' in diameter and is well shielded while also offering superior visibility. Compatible with Novak type front sight dovetail cuts (0.330" x 65 x 0.075") as typically found on both customized and factory 1911 pistols. Specifications for Kensight DFS Serrated Blade Fiber Optic Fixed Rear 1911 Sight: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Mount Type: Dovetail Package Contents: Kensight DFS Serrated Blade Fiber Optic Fixed Rear 1911 Sight What firearm models does the manufacturer say Kensight DFS Serrated Blade Fiber Optic Fixed Rear 1911 Sight is compatible with? The manufacturer says that Kensight DFS Serrated Blade Fiber Optic Fixed Rear 1911 Sight is compatible with 1911Kensight 940-621: DFS Serrated Blade Fiber Optic Fixed Rear 1911 Sight Black