The fail-safe, maintenance-free Tru-Dot Tritium Night Sight Set from Meprolight do not require any external power source, and provides years of usable illumination in all weather and light conditions. This set replaces the stock front and rear iron sights on 10mm and .45ACP caliber Glock G20, 21, 29, 30, 36, and 41 handguns.
The U-shaped rear sight has yellow dots on either side of the opening, and the front sight has a single green dot on the post. When aimed correctly, all three dots line up ensuring a straight stance for quick target acquisition and tracking. The contrasting front and rear colors provide an unmistakable center aiming point when looking down the barrel. 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 use.