Sig Sauer P320 M18 MS California Compliant 9mm Compact, Coyote PVD, 3.9 in Barrel, SIGLITE Night Sights, 10+1, Optic-Ready
This Sig Sauer P320 M18 MS is the California Compliant compact variant built around a 3.9 in barrel, a stainless slide with coyote PVD finish, and a coyote polymer grip module. It includes an ambidextrous manual safety and a loaded-chamber indicator, SIGLITE tritium night sights, and an optic-ready slide with a removable rear-sight plate. Six 10-round magazines and an Olight PL-MINI 2 Valkyrie come with this example, manufactured in 2024 in Newington, NH.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This pistol is in great shape overall. Minor, superficial scratches and small blemishes are visible from prior handling. The bore is clean and shiny.
What’s Included
- Six 10-round SIG Sauer P320 steel magazines
- SIG Sauer factory hard case
- SIG Sauer P320/M18 user manual
- Olight PL-MINI 2 Valkyrie (installed)
The M18 MS configuration delivers a compact, striker-fired 9mm with a 10+1 capacity, ambidextrous manual safety, and a loaded-chamber indicator in a duty-ready coyote finish. The stainless steel slide wears coyote PVD and features front and rear cocking serrations for confident manipulation.
SIGLITE tritium night sights are factory installed, with the rear night-sight unit integrated into the removable optic plate. The slide is optic-ready and uses the factory footprint compatible with Leupold DeltaPoint Pro and SIG Romeo1Pro patterns.
The coyote polymer grip module includes molded SIG medallions and a lanyard loop. A MIL-STD-1913 accessory rail on the dustcover supports lights and accessories. Controls are straightforward and fully ambidextrous at the manual safety.
This example includes six 10-round magazines (several marked "Made in Italy") and arrives with an Olight PL-MINI 2 Valkyrie pre-installed. Note: the charging cable is not included. Slide markings read "SIG SAUER P320" and "M18," and the barrel hood is marked "9mm x 19."
Manufactured in 2024 in Newington, New Hampshire, it carries the California Compliant designation and the correct factory part number 320CA-9-M18-MS-CA. The serialized FCU window shows an "M18A" prefix that matches the included case label dated May 20, 2024.




