Kensight DAS Contoured Profile Fiber Optic Adjustable for Elevation Only Rear 1911 Sight Black. The serrated blade option was added to satisfy many shooters' need for more defined sight picture. 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 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 DAS Contoured Profile Fiber Optic Adjustable for Elevation Only 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 DAS Contoured Profile Fiber Optic Adjustable for Elevation Only Rear 1911 Sight What firearm models does the manufacturer say Kensight DAS Contoured Profile Fiber Optic Adjustable for Elevation Only Rear 1911 Sight is compatible with? The manufacturer suggests that Kensight DAS Contoured Profile Fiber Optic Adjustable for Elevation Only Rear 1911 Sight is compatible with 1911Kensight 940-639: DAS Contoured Profile Fiber Optic Adjustable for Elevation Only Rear 1911 Sight Black