AmeriGlo Protector, Sight, Fits Glock 17,19,22,23,24,26,27,33,34,35,37,38,39, Green Tritium LimeGreen Lumi Round Outline Front, Black Serrated Rear GL-701 Employing a glare-reducing black serrated rear sight paired with a tritium ProGlo front sight" the Protector Sights are designed for quicker front sight acquisition and maximized concentration on the front sight blade.