Product DescriptionThe Trijicon Suppressor/Optic Height Night Sight Set is engineered for Glock standard-frame pistols to deliver a clear, reliable sight picture in bright light, low light, and no-light conditions. Designed to clear suppressors and co-witness with slide-mounted optics, this set pairs a black-outlined, tritium-illuminated front sight with a durable, non-illuminated metal rear. Built for duty use, the sights feature tritium phosphor lamps housed in protective aluminum cylinders, cushioned by silicone rubber, and capped with sapphire windows for even light distribution and solvent resistance. Made in the USA and warranted for 12 years on the green tritium front lamp.Product Highlights Suppressor/optic height for co-witnessing with pistol red dots and clearing suppressors Green tritium front lamp for instant aiming in low- and nolight Shock-resistant design with aluminum sleeves and silicone cushioning Sapphire-capped lamp for even light distribution and enhanced protection Precision-machined steel construction built for durability Specs Compatibility: Glock 17, 17L, 19, 22, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 37, 38, 39, 45 Illumination: Green tritium front; rear is nonilluminated metal Front Sight Dimensions: Overall height approx. 0.42 in (10.6 mm); blade approx. 0.37 x 0.14 in (9.3 x 3.7 mm) Rear Sight Dimensions: Overall height approx. 0.45 in (11.5 mm); blade height approx. 0.36 in (9.2 mm); notch width approx. 0.15 in (3.8 mm) Construction: Machined steel sights; tritium lamps in protective aluminum cylinders with silicone rubber cushioning; sapphire lamp window Country of Manufacture: USA UPC: 719307620636 Manufacturer Part Number: GL201-C-601137 Brand: Trijicon 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.