The Night Fision Official Costa Ludus Night Sights pair a proprietary Perfect Dot front sight with a green tritium dot and a horizontal green tritium bar rear sight, delivering a distinctive, unmistakable sight picture that rises above the competition. Serrated for low-glare visibility, these sights sit slightly lower to maintain a clear, unobstructed dot for minimal co-witness, while the patented injection molded sleeve secures the tritium vials in place with ballistic materials. Built to endure, they house more tritium than the average night sight on the market and feature a domed lens that collimates tritium rays for a crisper, crisper glow in low light. CNC machined from high-quality steel and finished with a black nitride coating, the sights resist wear and corrosion while maintaining a precise, repeatable alignment. Designed for Glock platforms including 17, 17L, MOS variants and more, these sights are installed by a gunsmith and offer an ideal balance of fast target acquisition and robust durability. Built in the USA with Swiss tritium, they provide a reliable, high-visibility sighting solution for duty, competition, and personal defense.