The Trijicon HD XR Suppressor/Optic Height Sights provide advanced precision long-range accuracy and absolute lower-third co-witness clearance on Smith & Wesson M & P C. O.R. E., M & P M2.0 Optics Ready, and M2.0 Metal Series pistol configurations. This tactical iron sight pairing features a signature ultra-thin 0.122-inch front post. The thinner blade design opens up your side-to-side sight pocket, creating an expanded field of view that expedites target indexing and improves downrange precision at extended distances. Operating completely battery-free via self-luminous green tritium core lamps, this system ensures constant low-light alignment and high durability under intense slide recoil. The front post features an aggressive photoluminescent yellow paint ring that forces your focal eye instantly toward the point of aim during rapid daylight transitions, while the angled and serrated face of the rear "U" notch actively neutralizes distracting reflection and glare. Thanks to their elevated profile, these steel sights comfortably clear the bodies of attached muzzle suppressors and cleanly serve as backup optics behind primary slide-mounted miniature red dots. Trijicon HD XR Suppressor/Optic Height Night Sights w/ green Trit Rear & Yellow/Green Trit Front for M& P C. O.R. E, M& P M2.0 Optics Ready SA340-C-601179