The XS Sights R3D 2.0 Night Sights for Glock 20/21/29/30/30S/37/40/41 offer a reliable, low-light aiming solution with a tritium front and rear that deliver a high contrast glow dot for quick target acquisition, complemented by a photoluminescent glow dot to ensure visibility in intermediate light. The wide notch rear features serrations and an anti-reflective lens to reduce glare and improve sight alignment, while the corrosion resistant Black Nitride finish provides enduring durability under demanding use. This traditional 3-dot tritium notch and post sight picture suits fast, instinctive shooting and remains compatible with Glock Gen 1 through Gen 5, including MOS models, making it a versatile upgrade for duty, personal defense, and hunting pistols. Proudly manufactured in Fort Worth, TX, these sights are designed specifically to fit Glock 20, 21, 29, 30, 30S, 37, 40, and 41 platforms, delivering consistent zero retention and dependable performance in daylight and darkness alike. Whether youre in a low-light scenario or transitioning between lighting conditions, the R3D 2.0 Night Sights provide a trusted, durable sighting solution that enhances accuracy and confidence at the firing line.