The Trijicon HD XR Night Sights were specifically designed with the ever evolving challenges of law enforcement agencies in mind. Building on the features of the current HD Night Sights, the HD XR night sights are for the next level of advanced target identification and engagement at increased distances. A thinner front sight post allows shooters to have a larger field of view which further enhances the ability to identify targets, expedite engagements and see location of hits on target at longer distances. Pistol shooters that need the advantage of a more precise engagement in any light can count on the Trijicon HD XR Night Sights. The Tritium gas lamps are contained within protective aluminum cylinders and have additional silicone rubber cushioning. Each Trijicon tritium lamp is capped with a sapphire jewel that helps evenly distribute the light and also acts as an additional layer of protection from puncture and cleaning solvents.