When the lights go out, your sidearm doesn't need to be left in the dark. Tritium Pro Night Sights transition from standard white dot sights during the daylight, to glowing green dots in the dark. Tritium does not need batteries and does not need to be charged with light - it simply glows!Features: Fits Springfield Armory XD Series (XD, XDS, XDE, XDM) Including Mod.2 models, excluding OSP and 5.25" Comp models Front sight Focus-Lock ring for even faster focus Quick and accurate U-notch design Angled rear sight edge for emergency one-hand operation Unmatched visibility in all shooting conditions 24/7 Compact design maintains factory sight radius Assembled in the U.S.A. with quality Swiss tritium for maximum brightness Glows in the dark 24/7 - No batteries or light exposure required Fits most standard holsters Tritium Green with Orange Front OutlineSpecifications: Model: Tritium Pro Frame Material: Steel Frame Color: Nitride Fortress Firearm Fit: Springfield XD-S Rear Material: Tritium Style: Square Front / U-Notch Rear Rear Color: Green with Black Outline Front Material: Tritium Front Color: Green with Orange Outline