Visibility is key when you're shooting, and having the right hunting & shooting optics can upgrade your whole firearm experience. The 2-pack TruGlo Glow-in-the-Dark Sight is designed with tritium white and green dot optic sights to provide the brightest three-dot aiming points. Enjoy excellent visibility whether shooting in broad daylight or low light settings. Naturally, a handgun light is essential for nighttime target acquisition, but tritium night sights can counter the whitewash from the tac-light so you can still aim accurately. These pistol sights transition from standard white dot sights during the daylight, to glowing green dots in the dark for added visibility. Crafted with a compact, snag-free design and an extended sight radius, these pistol sights effortlessly fit into standard holsters for seamless carry. These models were designed to be compatible with Smith & Wesson M&P pistols including SHIELD models and excluding .22 Compact and CORE models. They are also compatible with SD9 and SD40 models, excluding VE models. Experience true accuracy with top-notch gun sights. If you are looking for a glow-in-the-dark sight set, add the 2 packs of Tritium Tactical Gun Sights from TruGlo that are sure to improve your visibility during the day or at night whether you are hunting or doing your routine nighttime training.