Zaffiri Precision aftermarket Glock 19 Gen 3 - ZPS.P ported slide. Single billet 17-4 stainless steel slides are made with tight tolerances that allow an increase in accuracy and performance. 100% American made and manufactured at Zaffiri Precision's facility. These are among the best aftermarket slides available for Glock.Fits Glock 19 - Gen 3 frame. Also compatible with Polymer 80 - PF940c FeaturesMachined from billet 17-4 Stainless SteelOptic Cut - Trijicon RMR / SRO and Holosun 407c / 507cSlide is pre-cut and pre-CerakotedBlack anodized optics cover plate included Note - This ZPS.P slide for Glock 19 Gen 3 IS ported compatible. No parts will be assembled. Optics Cut:Trijicon RMR / SRO and Holosun 407c / 507c and other popular "RMR footprint" optics - mounting position is in front of the factory location of the rear sight (dovetail remains behind the optic cut). Includes black anodized cover plate. Slide comes with proper mounting screws...