The Norsso Commander Slide is machined from solid 17-4 Precipitation Hardened Stainless Steel billet then heat treated to an H900 designation. Slide ships ready for internals and optic installation. Stripped slide only; sights, optics, internals, or other accessories shown are not included with purchase. FeaturesOptic milling to mount a Trijicon RMR by defaultOutfitted with deepest, forward serrations on a slide to dateExtra chevron-style top serrations for additional gripping Multifaceted contoured front and rear cornersCompatible with 4.7" length barrels only (full-size length)Compatible for 9mm applications