The Mepro FT Bullseye sight is the fastest brightest and most intuitive tritium fiber optic sights we've ever built. This low-profile single-night-sight design is powered by fiber optics to master the day while premium-grade tritium handles even the darkest blackout conditions.Aligning with a single central point of focus the Mepro FT Bullseye has the feel of a red dot sight. These Meprolight night sights are drop- and shockproof built for endless rounds under heavy recoil and make an excellent upgrade sight to pistols we service like Smith & Wesson Springfield IWI Glock and others. Its ultralight snag-free design is easy to draw and gives you instinctive aiming under pressure.