The Night Fision Tritium Night Sights for Glock pistols offer a revolutionary approach to gun sights. Designed for optimal visibility in any lighting condition these sights feature a unique injection-molded sleeve that securely holds tritium vials in place forming a brighter and more durable ring known as The Perfect Dot. The front sight is enhanced with phosphorescent material ensuring quick target acquisition even in low light as your eyes adjust. With a square front and U-notch rear design these night sights provide a clear and precise sight picture. Crafted from robust steel with a sleek black finish they are tailored to fit Glock models 20 21 29 30 36 40 and 41 along with their S and SF variants. The green tritium with a yellow outline on the front and a green tritium white outline on the rear ensure consistent performance without the need for elevation or windage adjustments.