:-For Taurus Millennium/Slim-Front sight FOCUS•LOCK ring for even faster focus-Quick and accurate U-notch Design-Angled rear sight edge for emergency one-hand operation-Assembled in USA with quality Swiss Tritium for maximum brightness-Unmatched visibility in low-light shooting conditions or complete darkness-Utilizes quality Swiss tritium for maximum brightness-Glows-in-the-dark – no batteries or light exposure required-FORTRESS FINISH™ provides a permanent protective coating for maximum protection-Snag resistant design / fits standard holsters