Kensight DAS Adjustable Pistol Sight w/ Recessed Blade 1911 Defense Rear Black. This rear sight by the experts at Kensight is Wire-EDM machined from 4140 chrome-moly steel that is then heat treated to a hardness of RC 38-40 ensuring tight part-to-part fit and long-lasting durability. The Kensight DAS 1911 Defense Adjustable Steel Rear Sight w/ Recessed Blade features click-adjustments that are positive and precise allowing for reliable and consistent point of impact changes. Equipped with a recessed face slanted blade the Kensight DAS 1911 Defense Adjustable Rear Sight w/ Recessed Blade & Click-Adjustments will give you the sharp defined sight picture you have been looking for. Specifications for Kensight DAS Adjustable Pistol Sight w/ Recessed Blade: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Rear Sight Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Package Contents: Kensight DAS Adjustable Pistol Sight w/ Recessed Blade What firearm models does the manufacturer say Kensight DAS Adjustable Pistol Sight w/ Recessed Blade is compatible with? The manufacturer suggests that Kensight DAS Adjustable Pistol Sight w/ Recessed Blade is compatible with 1911Kensight 860616: DAS Adjustable Pistol Sight w/ Recessed Blade 1911 Defense Rear Black