If you're an avid collector of the Colt 2020 Python/Anaconda revolver, then the Wilson Combat Adjustable Target/Tactical rear sight is a must-have addition. Built with hardened chromoly steel for maximum durability and reliability, this replacement sight provides an improved sighting picture as well as reliable adjustments that guarantee a perfect fit in any revolver frame. More than just durable and dependable, it will also ensure that you are always ready for whatever comes your way. Upgrade your gun's potential with this heavy-duty sight engineered for effortless field adjustments. It features abundant elevation and windage change which can be installed quickly, while the rear blade comes in either a square or U-notch to suit all needs. To further minimize glare, its radiused edges are serrated giving you an ideal combination when paired up with the factory front sight.