This is a Zaffiri Precision aftermarket ZPS.B Integrated Blowhole System compatible slide. Single billet 17-4 stainless steel slides made with tight tolerances allowing greater accuracy and performance. FeaturesMachined from billet 17-4 Stainless SteelAll slides are pre-cut and pre-Cerakoted to order.Does not include channel liner Note: This slide is IBS (Integrated Blowhole System) compatible. THIS SLIDE IS ONLY COMPATIBLE WITH IBS Ported Barrels and non-ported barrels. NOT COMPATIBLE WITH ANGLE PORTED OR TOP PORTED BARRELS. 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.