With the challenges of the changing landscape in law enforcement comes the next evolution of the Trijicon night sight line. Building on the features of the current HD night sights, the Trijicon 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. Fits Glock models: 42 & 43