The Iron Sight Front Cut Slides for Glock(R) pistols allows any operator to build a custom Glock(R) style pistol from the ground up with a slide already customized with front slide serrations. Our Front Cut Slides feature a unique wraparound slide serration design that aids in weapon manipulation, especially when checking the chamber. Serrations are cut to the same depth as Glock(R) factory models to ensure lower slide rigidity. Slides start out as 17-4 stainless steel billet and are machined internally to factory specifications. Slides are compatible with any standard Glock(R) 17 or 19 components. The factory Glock(R) rear sight dovetail is machined, with a standard Glock(R) front sight cut at the front. Heat treated to 41-44 on the Rockwell C scale Finished with a matte black nitride finish Factory internal dimensions Factory Glock(R) sight cuts For Gen3 pistols Channel liner required for these slides. Channel liners are a press fit and require a tool to install.