Sig Sauer P320 M18 9mm Pistol
Updated August 20, 2026
| Lot number | 1060 |
| Category | Firearms & Militaria |
| Auction | August Firearm Auction |
| Date | August 27, 2026 at 5:00 PM MST |
| Auction house | Nine Lives Auction |
| Location | Phoenix, Arizona |
Function: Factory Case, 3 Mags, Optics Ready, Excellent Condition The SIG Sauer P320-M18 9mm is a compact, striker-fired service pistol that serves as the commercial version of the official sidearm issued to all branches of the U.S. Military, including the U.S. Marine Corps. Known for its modularity and duty-ready features, it is widely used for everyday carry, home defense, and recreational shooting.Key SpecificationsCaliber: 9mm LugerBarrel Length: 3.9 inchesOverall Weight: 28.1 ounces (unloaded)Finish: Coyote Tan PVD slide and matching polymer grip moduleAction: Striker-fired single actionStandard FeaturesOptic-Ready Slide: Directly compatible with red dot optics like the SIG Sauer ROMEO1 PRO and Leupold DeltaPoint Pro.Night Sights: Equipped with high-visibility SIGLITE front night sights and a removable night sight rear plate.Ambidextrous Controls: Features an ambidextrous manual thumb safety, slide release, and a reversible magazine release.Modular Chassis: Built around a serialized Fire Control Unit (FCU), allowing shooters to easily swap out the grip module, slide, and barrel sizes.Magazine Capacity: Typically ships with one 17-round flat-base magazine and two 21-round extended magazines (10-round variants are available for capacity-restricted states) SN: M18A008429
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