Trijicon HD XR Tritium Night Sight Set Features The Trijicon HD XR Tritium Night Sight Set builds on the proven HD Night Sight platform to deliver the next level of advanced target identification and engagement at increased distances. The front sight s domed sapphire and tritium lamp is engineered to shine 2X brighter than earlier generations which pulls the eye to the sight picture faster under stress or in low light. A thinner front sight post opens up the shooter s field of view making it easier to track a target assess hits and re-engage at longer ranges. The angled serrated U notch rear sight cuts glare and keeps the shooter s focus locked on the front sight rather than the rear blade. Finished with a black steel frame the set pairs a green tritium lamp with an orange photoluminescent outline up front against a green tritium lamp with a black outline at the rear giving a clear three-dot reference that reads quickly in daylight and glows reliably after dark. The set installs as a complete package with one front sight one rear sight and a front sight screw and is built specifically to fit the Glock large frame family: the 20 21 29 30 and 41 including the S and SF variants. Local and federal law enforcement and competitive pistol shooters rely on this fit and finish for a precise repeatable sight picture. At just 0.42 oz the set adds negligible weight while meaningfully upgrading a duty or competition pistol s low-light performance. Trijicon HD XR Tritium Night Sight Set Specifications Manufacturer: Trijicon Model: HD XR Tritium Night Sight Set Type: Night Sight Compatible Hosts: Glock 20 21 29 30 41 (including 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 Includes: 1 Front Sight 1 Rear Sight 1 Front Sight Screw Available At: GrabAGun