AmeriGlo Protector, Sight, fits Glk 17,19,22,23,24,26,27,33,34,35,37,38,39, Green Tritium Limegreenlumi Outline Front Black Serrated Round Notch Rear Fits Glock models 17 19 22 23 24 26 27 33 34 35 37 38 39 Luminescent green Outline front Rapid sight acquisition