Sig Sauer P320X Full 9mm

Updated August 24, 2026

This SIG Sauer P320 X-Full semi-automatic pistol is chambered in 9mm and comes equipped with a SIG Sauer ROMEO red dot sight, making this an attractive optic-equipped example of the popular X-Series platform. Serial number 58K144639, this pistol features an approximately 4.5" barrel with a shiny bore and remains in good overall condition. The full-size polymer X-Series frame features an aggressively textured synthetic grip and is paired with a steel slide carrying the mounted SIG Sauer ROMEO optic. One magazine is included along with the original SIG Sauer hard case. The modular P320 has become a cornerstone of SIG Sauer’s modern handgun lineup, while the X-Full configuration combines full-size dimensions with upgraded ergonomics and performance-oriented styling. The factory-brand optic adds considerable appeal to an already desirable configuration. With its ROMEO red dot, original case, shiny bore, and full-size X-Series frame, this is a well-equipped SIG Sauer package ready to draw attention on the auction block. Please see photos. Sig Sauer P320X Full 9mm Semi 4.5 Shiny 58K144639 Good

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