The XS Sights GLR021P6N R3D Night Sights for Glock deliver reliable low light performance with a high-contrast green tritium front sight outlined in a vivid orange to ensure quick front sight acquisition, paired with a green tritium rear that can be selected with or without tritium to suit your preference. This suppressor-height, CNC machined steel set features a rear overhang that reduces glare while the anti-reflective rear tritium lens in the R3D variant minimizes reflections for more consistent aiming in changing lighting. The minimalist design includes self-shadowing rear serrations on select models and a rear ledge that facilitates one-handed slide manipulations, making it a practical upgrade for defensive handguns. Built to fit standard holster options, the sights are designed for Glock platforms including popular models, and they are compatible with modern optic systems like the Trijicon RMR, Holosun 507C series, and Vortex Viper through the suppressor-height configuration. With durability from precision CNC manufacturing and a strong warranty offering a 10-year coverage plus a 30-day satisfaction guarantee, these night sights provide dependable visibility, fast target focus, and improved sight alignment for reliable performance in both bright and low-light environments.