For use with the standard 9MM, 3.9″ non-threaded or 4.6″ threaded barrels. Factory replacement PRO-CUT Slide Assembly for the P320 X-Compact through X-full size pistols. Features: Optic ready. Compatibility: ROMEO1-PRO, ROMEO2, Delta Point Pro, and RMR (requires sealing plate) footprint. XRAY3 Day/Night Suppressor height sights. Durable PVD Finish. Stylized relief cuts, Removable optics plate with top accessible screws