The Brownells slide for the SIG P365 XL comes with a built-in mounting slot for the Holosun 507K red dot sight. The affordable, feature-rich, ultra-compact 507K is the perfect red dot for the compact, versatile SIG Sauer P365 XL pistol platform. Although some mount footprints for other manufacturers' red dot sights can work for the Holosun 507K, the mounting slot on our slide is cut to fit the exact dimensions of the sight. This results in a rock-solid sight installation that will not shift under recoil. Our Holosun 507K Cut Slide for SIG P365 XL offers all the quality, robustness, and ergonomic enhancements of our popular slides for Glock pistols. It is perfect for upgrading an Mfg: Brownells
