Featuring SIG SAUER’s exclusive slide-mounted optic, the ROMEO1 PRO, the RXP will ensure faster sight acquisition on target. Simply put, it will make a good shooter a great shooter. Shoot confidently with faster target acquisition and improved accuracy. Installed. Zeroed. And backed by the quality of the SIG name. The P320 XFULL joins the Red Dot Revolution with an installed optic that will make all the tough shots easy. Along with all of the features of the original XSeries full size offering, the P320 XFULL RXP features a 6MOA Romeo1 PRO installed on the pistol that is perfectly mated to front and rear XRay3 day/night suppressor-height sights. This allows for faster sight acquisition and easy co-witnessing. Additionally, an optic plate cover is included with all Romeo1 PRO-equipped XSeries P320 pistols for shooting without the optic if desired. State Compliant: CO / CT / HI / IL / MD / NJ / NY