Sig Sauer P320 X-Ten 10mm Auto

Updated August 24, 2026

This SIG Sauer P320 X-TEN semi-automatic pistol is chambered in powerful 10mm Auto and represents a full-size, performance-oriented member of SIG’s highly successful P320 family. Serial number 58K157383, this example features an approximately 5" barrel with a shiny bore and presents in very good overall condition. The pistol utilizes a textured synthetic grip module and polymer frame assembly paired with a substantial steel slide designed around the hard-hitting 10mm cartridge. The slide is factory optic-cut, giving the next owner the ability to configure the pistol with a compatible electronic sight. Two magazines are included along with the original SIG Sauer hard case, adding considerably to the completeness of the package. The modular P320 platform became one of SIG Sauer’s most important modern handgun designs, while the X-TEN brought the increasingly popular 10mm Auto cartridge into the family for shooters wanting greater power from a full-size semi-automatic pistol. With its long slide, optic-ready configuration, two magazines, factory case, and very good condition, this X-TEN makes an impressive modern handgun package. Please see photos. Sig Sauer P320 X-Ten 10mm Auto Semi 5 Shiny 58K157383 Very Good

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