Glock Rear Sight Install and Removal Tool America Edition Quickly remove and Install stock reat sights Glock Gen 4 17,18,19,26,34,43,22,23,35,24, 20,40, 21,30, 41, 31,32,42 plus more Quickly adjust tool for different size slides Support America with Red, White, and Blue Sight Tool Affordable alternative to metal sight tool