Sig Sauer P320X Full 9mm

Updated August 24, 2026

This SIG Sauer P320 X-Full semi-automatic pistol is chambered in 9mm and is highlighted by the addition of a premium Trijicon optic. Serial number 58J406679, the pistol features an approximately 4.5" barrel with a shiny bore and remains in good overall condition. The P320 X-Full utilizes SIG Sauer’s ergonomic X-Series-style synthetic grip module and polymer frame configuration paired with a full-size steel slide. The slide is optic-cut and currently fitted with a Trijicon RMR06 red dot sight, a highly desirable addition that substantially enhances the overall package. One magazine is included, along with the original SIG Sauer hard case. The modular P320 has become one of SIG Sauer’s most important modern handgun platforms, while the X-Series builds upon the design with performance-oriented ergonomics and styling. With its full-size configuration, optic-ready slide, Trijicon RMR06, factory hard case, and popular 9mm chambering, this example has plenty to offer the SIG enthusiast looking for something beyond a standard factory P320. Please see photos. Sig Sauer P320X Full 9mm Semi 4.5 Shiny 58J406679 Good

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