TWilson Combat Adjustable Target/Tactical Rear Sight for Colt 2020 Python/Anaconda This rugged, fully-adjustable replacement rear sight of hardened chromoly steel has an improved sight picture, reliable adjustments and a superior fit in your revolver's frame. This heavy duty sight can make a great gun even better and allows for easy adjustment in the field. These sights have generous elevation and windage adjustment and are easy to install. The rear blade with your choice of square notch (target) or U-notch (tactical) has radiused edges and is partially serrated to reduce glare and is a perfect match for the factory front sight. NOTE: This sight will ONLY fit new produc Mfg: Wilson Combat