Ameriglo’s series of ProGlo front sights is a perfect upgrade for your Glock handgun. Once installed, the ProGlo sights can greatly enhance your accuracy and target acquisition especially in low light environments. This can be attributed to a tritium lamp surrounded by an outline for better contrast. ProGlo sights are compatible with all Generations and models of Glocks, and are available in various heights, and multiple outline colors. Features of the ProGlo Sights: Tritium lamp Different outline colors available Different heights available Compatible with all generations and models of Glocks Ameriglo ProGlo Grn Trit w/LumiGreen Outline .385"H .125"W Front Sight for Glock GL-212-385-GR-C