TRUGLO Tritium Pro Night Sights are precision-engineered to fit Novak LoMount cut handguns, featuring a .270 front sight height and a .450 rear sight height. These sights incorporate Swiss Tritium for maximum brightness, providing unmatched visibility in low-light shooting conditions or complete darkness.Key FeaturesFront Sight Design: Includes a FOCUS-LOCK ring for faster focus on the target.Rear Sight Design: Quick and accurate U-notch design enhances aiming precision.Emergency Operation: Angled rear sight edge allows for emergency one-hand operation.Finish: FORTRESS FINISH provides a permanent protective coating for durability.Compatibility: Designed for 1911-style handguns with Novak LoMount dovetail cut slides; some fitting may be required.Installation Recommendation: Installation by a competent gunsmith is recommended for optimal fit.