The Polymer 80 Slide is a high performance stripped slide for Glock 19 Gen 3 pistols. It offers a tighter tolerance than the factory original Glock slide and is machined from 17-4 billet stainless steel providing the toughness and durability to last the life of the pistol. It features a black nitride coating on the inside and outside of the slide. The Polymer 80 slide offers an optic cutout that is compatible with Trijicon RMR. This slide boasts aggressive front and rear serrations coupled with clean modern lines and a heavy front chamfer to allow effective manipulation and holstering. These Polymer 80 slides are precision machined to provide optimal performance unrivaled durability and high end aesthetics for the Glock pistol owner looking for more. All slides are stripped and do not include internal components. The Polymer 80 Precision Slide offers the high-quality craftsmanship that only P80 offers with its extensive Glock aftermarket manufacturing background. Put one of these slides on your Glock and you will notice the difference. DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.