This Williams Ghost Ring Sight Set uses Williams industry leading click adjustment pistol sight design with a unique sight picture. The Ghost Ring Adjustable Pistol Sights allow shooters to take advantage of a rear sight aperture for superior accuracy and target acquisition. This ghost ring design is perfect for competition shooters or shooters looking to improve their accuracy. The adjustable sights also come with click adjustment windage and elevation adjustments for precise shooting. All of Williams sights are CNC machined of high grade steel and aluminum for extreme durability.