Product DescriptionXS Minimalist Optic-Ready sights for Glock MOS pistols provide a simple, low-profile backup iron sight solution that maximizes visibility through a red-dot window. Engineered to optic height, this set delivers a low co-witness out of the box-no height calculations required. The front sight features a green tritium insert for 24/7 visibility, while the blacked-out serrated rear reduces glare and distraction. Precision CNC machined steel with a Black Nitride finish ensures durability and corrosion resistance, and the sights are designed to co-witness with popular RMR and ACRO footprint optics.Product Highlights Optic-height design for immediate low co-witness with common red-dot footprints (RMR, ACRO) Tritium front sight with green dot for enhanced low-light performance Blacked-out serrated rear sight minimizes glare for a cleaner sight picture Durable CNC-machined steel construction with corrosion-resistant Black Nitride finish Purpose-built backup iron sights for Glock MOS slides Specs Brand Name: XS Sights Manufacturer Part Number: GL-M201P-4 UPC: 647533001502 Color/Finish: Black; Black Nitride Material: Steel (CNC machined) Sight Type: Night sights; Optic height Front Sight: Tritium, green dot Rear Sight: Blacked-out serrated; Non-adjustable Dovetail Cut: Glock Co-Witness: Low co-witness through optic window Compatibility: Glock 17, 19, 22, 23, 24, 26, 27, 28, 31, 32, 33, 34, 35, 36, 38, 39, 45, 47, 49 Country of Manufacture: United States of America Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&&';;s manufacturer.