Sig Sauer P320-M18 9mm Compact, 3.9 in Barrel, Coyote PVD Slide, SIGLITE Night Sights, Manual Safety, 17+1, 2 Magazines
This carry-size Sig Sauer P320-M18 pairs a 3.9 in barrel with a coyote PVD-coated stainless-steel slide and a coyote polymer grip module. It is striker-fired with bilateral manual safety levers, SIGLITE night sights, and an optics-ready PRO footprint. The modular, serialized FCU allows configuration changes across P320 grip modules and slides.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: There are minor, superficial scratches and blemishes on exterior surfaces.
What’s Included
- SIG Sauer factory hard case (gray)
- Manual
- Two 17-round P320 double-stack steel magazines (one marked "Made in Italy")
The P320-M18 is a compact, carry-size 9mm built around a modular, serialized fire control unit. This design allows the pistol to be reconfigured across P320 grip modules and slides while maintaining the same core FCU.
Its stainless-steel slide wears a coyote PVD finish and features front and rear serrations for confident manipulation. The slide is optics-ready with a PRO footprint and uses a removable rear-sight plate that carries the rear night sight.
Factory SIGLITE night sights and a 5.8 in sight radius provide a clear, consistent sight picture in varied light. The medium polymer grip module has textured panels for control and includes a lanyard loop at the magwell.
The striker-fired system includes an internal striker safety and bilateral manual safety levers. An M1913 accessory rail with four cross-slots supports common weapon-mounted accessories.
This example is the carry-size configuration (mfg part number 320CA-9-M18-MS) with a 3.9 in carbon steel barrel and 17+1 capacity. The case label SKU matches the pistol’s configuration, and two 17-round magazines are included.




