Kensight Rollo 1911 Rear Sight w/ Anti-Snag Blade Tritium Rear Black. This rear sight from Kensight can be mounted on the 1911 slide in the old National Match style that was popular in the early 1960s or be mounted slightly forward at the rear edge of the slide using the Caspian Arms Rollo cut. The Kensight Rollo 1911 Steel Adjustable Rear Sight w/ Anti-Snag Blade is easy to carry and won't cause any snags. Specifications for Kensight Rollo 1911 Rear Sight w/ Anti-Snag Blade: Manufacturer: Kensight Gun Make: 1911 Platform Gun Model: 1911 Color: Black Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Illumination Type: Tritium Mount Type: Dovetail Package Contents: Kensight Rollo 1911 Rear Sight w/ Anti-Snag Blade What firearm models does the manufacturer say Kensight Rollo 1911 Rear Sight w/ Anti-Snag Blade is compatible with? The manufacturer says that Kensight Rollo 1911 Rear Sight w/ Anti-Snag Blade is compatible with 1911Kensight 860-098: Rollo 1911 Rear Sight w/ Anti-Snag Blade Tritium Rear Black