Zaffiri Precision IBS Glock 19 Gen 3 Complete Pistol Slide Nitride Black/Black G19G3-IBS-RMR-BLK-CP-BN. Each assembly is built around a billet stainless steel slide and matched with an IBS barrel featuring Chunk Porting to create a cohesive ported configuration. This system is designed to ensure proper alignment between slide ports and barrel porting while maintaining a clean integrated setup. All Zaffiri Precision complete slides are optics-ready and include a cover plate and mounting screws. Each assembly is equipped with blacked out iron sights that provide a lower 1/3 co-witness with RMR Holosun 507C and similar height optics. Specifications for Zaffiri Precision IBS Glock 19 Gen 3 Complete Pistol Slide: Manufacturer: Zaffiri Precision Gun Make: Glock Gun Model: Glock 19 Gen 3 Optic Cut: RMR Cut Fabric/Material: Stainless Steel Gun Type: Pistol Features of Zaffiri Precision IBS Glock 19 Gen 3 Complete Pistol Slide Fully assembled slide ready for installation Includes precision-fit IBS barrel with Chunk Porting Integrated ported slide and barrel system Includes complete upper parts kit (UPK) Includes backplate and recoil assembly Includes blacked out front and rear sights Lower 1/3 co-witness with RMR Holosun 507C and similar height optics Optics-ready design Compatible with OEM and aftermarket Glock frames Port alignment is designed specifically for IBS barrel configurations Package Contents: Zaffiri Precision IBS Glock 19 Gen 3 Complete Pistol Slide Cover Plate Optic Screws What firearm models does the manufacturer say Zaffiri Precision IBS Glock 19 Gen 3 Complete Pistol Slide is compatible with? The manufacturer suggests that Zaffiri Precision IBS Glock 19 Gen 3 Complete Pistol Slide is compatible with Glock 19 Gen 3Zaffiri Precision G19G3-IBS-RMR-BLK-CP-BN: IBS Glock 19 Gen 3 Complete Pistol Slide Nitride Black/Black