The Trijicon HD XR Night Sight Set for Glock 42/43 is a tritium night sight upgrade built for shooters who need reliable target acquisition in low light and at extended ranges. These steel matte sights replace your factory setup with a three-dot configuration using tritium and phosphor lamps, giving you a self-illuminating sight picture that doesn't depend on a flashlight or ambient light. If you carry a compact 9mm for defense or shoot your Glock 42 or 43 in variable lighting conditions, these sights close the gap between daytime precision and night-time capability.

The HD XR design centers on a thinner front sight post—a key upgrade that opens your field of view without sacrificing sight definition. That wider sight picture helps you pick up targets faster, track movement more easily, and spot your bullet holes downrange when precision matters. The U-notch rear sight complements the streamlined front post, and protective aluminum cylinders shield the tritium lamps while sapphire windows maintain optical clarity. A silicone rubber cushion absorbs impact, extending the life of your sights in the real world.

Because these are Trijicon sights, you're looking at decades of tritium glow—the self-luminous lamp requires no battery and continues to work when your flashlight fails or when you're navigating in absolute darkness. The matte steel finish resists glare and blends with carry guns that spend time in holsters and bags. Installation is straightforward on Glock 42 and 43 platforms, and once zeroed, these sights stay put.