XS Sights R3D, Tritium Night Sights, Suppressor Height, Green Front and Black Rear, For Glock 17,19,22,23,24,26,27,31,32,33,34,35,36,38 GL-R021P-6G Elevate your Glock with XS Sights' R3D Night Sights - the ultimate solution for low-light shooting! These sights fit a wide variety of Glock models" including those that require suppressor height sights" so you can upgrade any Glock in your collection.