XS Sight Systems DXW Big Dot Pistol Tritium Night Sight Colt 1911 Enhanced All Barrel Lengths BCMS Cut Matte Black Standard. To amplify your aiming capabilities these XS Sight Systems Illuminated Pistol Night Sights contain green tritium for unmatched accuracy with every shot. However the front sight features a large white ring surrounding the tritium dot and the rear sight isn't illuminated making this setup a bit more tricky. However the XS Sight Systems DXW Big Dot Pistol Sight - Colt is easy to install and works seamlessly with most holsters on the market. These sights are designed to replace the factory sights and the sight sights are designed to directly replace the originals. Plus the steel construction and no-questions-asked warranty make this a trustworthy option for personal and home use. Pick up the XS Sight Systems DXW Big Dot Illuminated Weapon Sight today to get the advantage in low light situations. Specifications for XS Sight Systems DXW Big Dot Sight - Colt: Manufacturer: XS Sight Systems Gun Make: Colt Color: Matte Black Front Sight Color: Green Rear Sight Color: Green Fabric/Material: Steel Gun Type: Pistol Illumination Type: Tritium Additional Features: Enhanced Big Dot's Outside Diameter is 0.188in Included Accessories: Red Threadlocker Mount Type: Dovetail Finish: Blued Features of XS Sight Systems DXW Big Dot Sight - Colt: Steel Sight With Blued Finish; Green Tritium Front and Non-Tritium Rear; White Ring Front; No Questions Asked Warranty Package Contents: XS Sight Systems DXW Big Dot Sight - Colt Red Threadlocker Blue Threadlocker &amp Allen Key XS Sight Systems NE-0014A-3: DXW Big Dot Pistol Tritium Night Sight Colt 1911 Enhanced All Barrel Lengths BCMS Cut Matte Black Standard