Wilson Combat Low Mount Sights feature a unique mounting design that results in a clean, sharp-looking installation, which requires simple cuts and no dovetails. The sights are manufactured from solid bar stock steel this is CNC machined. Sights are fully adjustable for windage and elevation. Black Matte. Click adjustments are 3/16" at 25 yards for windage and elevation. Some gunsmithing required. Fits all 1911 styles except Colt Gold Cup and AMT hardballer. WS428