To consider a gun to be great, it must be reliable day and night. Providing a consistent green glow, Rival’s tritium night sights ensure accuracy in low light and even complete darkness. In daylight, a 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. Suppressor/Optic Ready sights for Sig Sauer P-Series.