Glock TacRack Back Plate for Models 17-35 GEN 1-4 with USA Flag Racking Made Easer Fits Glock models 17-35 GEN 1-4 (Does not fit the Glock 42 or 43)- Engraving with: USA Flag Easily installed and removed with no permanent modifications Two/One Hand Racking Enhances overall grip on the slide