Kensight Colt Style Formerly Accro Tritium Pistol Night Sight Front Lumi Green Outline Black. No fitting or modification required. The Green tritium insert is 0.077'' in diameter and featuresLumi Green color ProGlo outline. Pairs perfectly withElliason or Colt Style rear sights. This sight does not fit the New 2020 Colt snake guns. This does not fit the New 2020 Colt Pythons/Snake Guns. Technical Information: Wire EDM Precision Machined Material: Sight made of 4140 Chrome Moly Steel Blade Dimensions: .180'' tall x .118'' wide (height to pair with an adjustable rear) Tritium Dimensions: .077'' in diameter with a .030'' thick PRO-GLO Lumi Green Outline BE CAREFUL ON THE INSTALL The tritium tube inside of the sight IS GLASS and it can break. BEFORE INSTALLATION - Inspect sight(s) immediately to verify that the tritium lamp is functioning. Any warranty claims for broken or dim tritium lamp(s) must be made prior to installation on your firearm. We will not be held responsible for breakage of tritium lamp(s) during the installation process. If you feel that the tritium lamp(s) in your sight is dim or non-functional in any way you must contactcustomer service department for warranty exchange or replacement before you attempt to install the sight otherwise the warranty will be denied. No exceptions. Authentic Kensight Sights - The Professional's Choice This is an authentic Kensight sight and not to be confused with other brands. When it comes to durability and features the Kensight sights far exceedcompetitors.sights are Wire-EDM machined from a single billet of 4140 chrome-moly steel. The result is a precision sight built with better materials and the Wire-EDM construction ensures the tightest tolerances possible. This translates to ultra-smooth adjustments audible clicks for both windage and elevation and consistent dovetail dimensions in which the ''industry standard'' CNC construction cannot compete. Backed by Limited Lifetime Warranty Kensight 1911 sights are premium quality and the first choice for factory-fit OEM manufactures competition shooters and professional's worldwide. Specifications for Kensight Colt Style Formerly Accro Tritium Pistol Night Sight: Manufacturer: Kensight Gun Make: Colt Gun Model: Colt 1911 Color: Black Front Sight Color: Green Fabric/Material: 4140 Chrome Moly Steel Gun Type: Pistol Front Blade Height: 0.180 in Illumination Type: Tritium Illumination Color: Green Mount Type: Dovetail Quantity: 1 Package Contents: Kensight Colt Style Formerly Accro Tritium Pistol Night Sight Kensight 890291: Colt Style Formerly Accro Tritium Pistol Night Sight Front Lumi Green Outline Black