To consider a gun to be great, it must be reliable day and night. Providing a consistent green glow, our tritium night sights ensure accuracy in low light and even complete darkness. In daylight, a large white dot and rounded notch design increase speed and accuracy. It is CNC-machined stainless steel construction, quick and accurate U-notch snag resistant design, fits most standard holsters. Note- M.O.S. height sights are intended for co-witness use with an optic and can be used with some suppressors, depending on suppressor size.