Sig Sauer P320 M18


Caliber: 9 mm
Capacity: 21 + 1
(3) Mags – (1) 17 rd, (2) 21 rd

In stock


Sig Sauer P320 M18

Based on the US Military M18 model, the Sig Sauer P320 M18 Semi-Auto Pistol delivers the unmatched reliability, accuracy, and dependability you’ve come to expect from the P320 series. This compact-sized civilian version features an optics-ready, stainless steel, Coyote PVD-finished slide with a removable night sight plate for easy installation and quick removal of optics. The carry-length, polymer grip module features aggressive texturing for an enhanced, non-slip grip and improved control. The Siglite front sight and night sight rear sights deliver intuitive target acquisition in any lighting conditions, while the ambidextrous manual safety ensures safe handling and effortless engagement/disengagement with either thumb. The Sig Sauer P320®-M18 Semi-Auto Pistol comes with one 17-round and two 21-round magazines.

The P320-M17 is a 9mm, striker-fired pistol and comes with two 17-round magazines. The pistol features a Nitron coated stainless steel slide with the same optic cut as specified by the MHS contract, compatible with Romeo1PRO and Deltapoint PRO optics, and black controls just like the pistols currently being shipped to the U.S. Army.

Firearm Features
Optic Ready PVD Slide with Removable Night Sight Plate
Carry Length Grip Module
Optional Manual Safety
Striker Fired with a Short Tactical Reset
(1) 17 rd steel magazine, (2) 21 rd steel magazines


  • Carry length frame and slide.
  • 3.9″ Barrel.
  • Smooth and crisp trigger pull.
  • Includes two 17 round magazines.
  • SIGLITE Night Sights, with removable Night Sight rear plate, for easy mounting of optics.
  • Coyote-tan PVD coated stainless steel slide
  • M1913 accessory rail
  • Manual Safety

Available without the manual safety also. Please contact for ordering information.


  • Slide Material: Stainless steel
  • Slide Finish: CoyotePVD
  • Manual Safety: Yes, Ambidextrous
  • Slide Lock: Ambidextrous
  • Barrel length (in.): 3.9
  • Product height (in.): 5.5
  • Product weight: 28.1 ounces
  • Product length (in.): 7.2
  • Front sight: SIGLITE
  • Magazine capacity: 17 and 21
  • Rear sight: Night Sight
  • Slide: Optic Ready