DUSK19 slides from Lone Wolf(R) were designed to take your shooting experience to the next level. In addition to their superior performance, these slides are also drop-in ready for Lone Wolf(R) DUSK19 Barrels or OEM GLOCK(R) Gen 1-4 9mm barrels as well as DUSK19 frames and factory frames.The DUSK19 slide is made of 17-4SS and finished in either an attractive black nitride or a selection of great PVD options such as flat dark earth, oil rubbed bronze, or graphite gray. Front and rear serrations on the slide provide ease of chambering and press-check. The slide is reflex sight-ready with the DUSK19 optic cover plate included, which is compatible with both TRIJICON RMR/SRO(R) and HOLOSUN(R) 407/507/508 (Non-K Models) footprints.Features Include: Ready to use, pre-fit for a drop in installation Slides fit Lone Wolf(R) DUSK19 Frames and GLOCK(R) Gen 3 compatible frames Compatible with Lone Wolf(R) DUSK19 Barrels and OEM Gen 1-4 9mm barrels Coated for corrosion and wear resistance Heat treated, high strength 17-4 stainless steel construction Exacting tolerances produce greater shot-to-shot accuracy Optic cut for Trijicon RMR(R) footprint Aluminum optic cover plate Proudly made in the USA