Trusted by competitive shooters and DIY builders alike, the Noveske® Optic Ready DM Slide and Barrel Set for Gen 4 Glock® 17 Pistols is a must-have drop-in G17 upgrade. The 17-4 stainless steel slide features a corrosion-resistant black DLC coating for exceptional strength and natural corrosion resistance, while the factory optics cut readily accepts a variety of common optics and optics footprints (not included). The DLC-coated 416R stainless steel threaded barrel boasts single-point cut rifling with S.P.T. technology and a 1:10 twist for unparalleled accuracy potential with most 9mm Luger loads. Includes factory-installed front sight and removable rear cover plate with milled rear sights. Includes Noveske-branded Glock-compatible back plate and all mounting hardware.