SIG Sauer P320-M18 9mm Carry, Coyote Tan PVD Slide, SIGLITE Night Sights, 3.9" Barrel, 21+1, 2 Magazines
This SIG Sauer P320-M18 is the Carry-size 9mm variant built with duty-focused features and a proven configuration. It pairs a 3.9" carbon steel barrel with SIGLITE tritium night sights, an ambidextrous manual thumb safety, and a Coyote Tan PVD-finished slide. The factory M18 optics interface sits beneath the removable rear sight plate, and this pistol includes two 21-round magazines for 21+1 capacity. A serialized stainless-steel FCU and USA manufacture round out a feature set that buyers seek in the M18 series.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: Minor blemishing and scratching are present on external surfaces. Pitting is present on the slide.
What’s Included
- SIG Sauer P320-M18 9mm pistol
- Two 21-round magazines (extended P320/M18 pattern, steel bodies with polymer basepads; one magazine marked "MADE IN ITALY")
The P320-M18 carry configuration delivers a 3.9" barrel, striker-fired action, and a curved trigger within SIG’s modular platform. Its serialized stainless-steel FCU and polymer grip module provide a robust, service-ready foundation.
The slide wears a Coyote Tan PVD finish and features front and rear cocking serrations plus an external extractor. SIGLITE tritium night sights are installed, with the tritium rear sight mounted on a removable plate covering the factory M18 optics interface.
Controls are fully ambidextrous where it counts, including the manual thumb safety and slide catch levers. An M1913 Picatinny accessory rail with three slots is integrated for mounting compatible lights or other accessories.
Capacity is 21+1 with the included extended magazines. A commercial M18 serial prefix ("M18A…") is observed, and the barrel hood is marked "9mm x 19," with the left side of the slide marked "SIG SAUER P320 M18."
Made in the USA, this model is listed under SIG part number M18-9-CSS-MS and aligns with the M18 feature set that buyers value, from its night sights and safety configuration to its optics-ready slide design.