Enjoy using a slide-mounted reflex sight without needing suppressor height iron sights. The factory-installed ROMEO-X COMPACT optic sits incredibly low to the slide so you can enjoy co-witness with the included standard height iron sights, giving you a consistent, familiar sight picture. Factory replacement 3.7" 9MM slide for the P365XL. This is a complete slide assembly, including all internal slide parts, and front and rear XRAY3 Day/ Night sights. 3.7"" Barrel and recoil spring assemblies are sold separately. 2 MOA Red Dot / 32 MOA Circle - ROMEO-X COMPACT Compatible with both the P365X and P365XL grip modules. **Note** Does not include a rear Mfg: Sig Sauer, Inc.