Trijicon HD XR Front Sight for Glock 9mm/40. Trijicon crafted these Tritium Pistol Sights with tritium lamps and a photoluminescent paint outline that illuminates the sights without the need for batteries or another power source and each lamp is capped with a sapphire jewel that helps evenly distribute the light while also protecting them from damage by puncture or cleaning chemicals. Thanks to the steeply-hooked front surface the Trijicon HD XR Front Pistol Sight allows for one-handed slide manipulation that is incredibly useful in tactical scenarios. The front post is thinner to expand your field of view (FOV) maximizing situational awareness in the field. Equip the Trijicon HD XR Front Night Sight for enhanced performance in any lighting conditions. Specifications for Trijicon HD XR Front Sight: Manufacturer: Trijicon Color: Green Rear Sight Color: front only Fabric/Material: Metal Front Material: Tritium/Paint Gun Type: Pistol Attachment Type: Professional installation recommended. Features of Trijicon HD XR Night Sight Set: Expanded Field of View Enhanced Sight Acquisition Tritium-Phosphor Lamp Protective Aluminum Cylinders Sapphire Window Silicone Rubber Cushion Package Contents: Trijicon HD XR Front Sight Trijicon 600838: HD XR Front Sight for Glock 9mm/40