Swenson M3 Series Slides are precision machined from stainless steel for a drop-in fit. Slides are shipped in a stripped configuration with no internal components, ready for standard factory replacement parts or a variety of aftermarket performance parts (including sights). Swenson M1 Series Slides feature a custom cut on top of the slide for weight reduction and cooling. Part may require fitting to your specific gun. Features:RMR Slide CutCustom Slide CutsPrecision Machined 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.