Introducing the Milspin Glock Racker Jacker: A lightweight, low-profile, ultra durable grip enhancement feature that allows significantly easier slide manipulation.  ***Now available in 2 sizes (below); please make sure to double check compatibility before adding to cart & checking out!*** The Milspin Slide Racker Jacker is designed to fit/intended for use with the following Models: *It will fit all of those models in ALL generations unless otherwise specified above. Perfectly sized side serrations and a wedged angle greatly improve ease of racking the slide. Glock 17, Glock 19, Glock 19X, Glock 23 Gens 1-4 Only, Glock 25, Glock 26, Glock 28, Glock 30S, Glock 34, Glock 36, Glock 41, Glock 45, Glock 47, Glock 49, and PSA Dagger.  Glock 43, Glock 43X, and Glock 48. Machined from 6061 aircraft grade aluminum with a hard anodized finish.