This Kensight Elliason-Style Rear Night Sight is Fully Adjustable for both windage and elevation, and is a faithful, modern-day recreation of the original Elliason Sight used on the legendary Colt 1911 Gold Cup pistols. The rear sight body is Wire-EDM machined from 4140 Chrome Moly Steel that is then heat treated to a hardness of RC 38-40, ensuring tight part-to-part fit and long-lasting durability. Click-adjustments are positive and precise, allowing for reliable and consistent point of impact changes. Sight comes complete with a replacement hinge pin and springs. This Elliason Rear Night Sight is equipped with a snag reducing Rounded Blade profile that is ideal for use on a duty or concealed carry pistol, and incorporates a Fine Line, Partially Serrated face for reduced glare. Positioned on either side of the rear sight notch is a Trijicon self-luminous Green Tritium Lamp nestled within a High Visibility White Dot, creating a sight picture that's quick to acquire and equally usefu...