Trijicon Suppressor/Optic Height HD XR Features The Trijicon HD XR Night Sight Set builds on the proven HD Night Sight line with self-luminous three-dot construction and a highly visible photoluminescent paint outline for faster acquisition in low light. The front sight combines a 2x brighter domed sapphire and tritium insert with an orange outline drawing the eye quickly under stress while the rear sight s green tritium and black outline complete a high-contrast sight picture. The rear sight s U notch is angled and serrated specifically to reduce glare helping the shooter maintain front-sight focus rather than getting distracted by reflections. A thinner front sight post gives the shooter a wider field of view which speeds up target identification and follow up engagements at longer distances. Built in a suppressor and optic height profile this set co-witnesses properly with a suppressor mounted or an optic installed on the slide a configuration many duty and competitive shooters rely on. The sight set is designed specifically to fit Glock 20 21 29 30 and 41 pistols including their S and SF frame variants so installation is straightforward on any of those models. A steel frame construction stands up to the recoil and repeated holstering that duty and competition use demand keeping the sights zeroed over time. The Trijicon HD XR Night Sight Set gives serious shooters a dependable higher-visibility upgrade for sale at GrabAGun. Trijicon Suppressor/Optic Height HD XR Specifications Manufacturer: Trijicon Model: Suppressor/Optic Height HD XR Type: Night Sight Set Compatible Hosts: Glock 20 21 29 30 41 (S and SF Variants) Front Sight: Green Tritium with Orange Outline Rear Sight: Green Tritium with Black Outline U Notch Frame Material: Steel Frame Color: Black Weight: 0.42 oz Available At: GrabAGun