The fail-safe, maintenance-free Tru-Dot Tritium Night Front Sight from Meprolight does not require an external power source, and provides years of green illumination in all weather and light conditions. It replaces the stock front iron sight on Novak sight-equipped Smith & Wesson Series-3900, 4000, 5900, and 6900 handguns without the need for any permanent modification or gunsmithing, and offers a single green dot to clearly mark your aiming point. Made from lightweight and durable aluminum with a chip, scratch, and corrosion-resistant anodized finish these sights are designed to stand up to years of recoil.
UPC: 840103136592