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Sig Sauer P320
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Sig Sauer

P320

$779.99
$699.99
Sale Price
Available California compliant
California DOJ roster CA DOJ Roster

Sig Sauer 320CA-9-M18-MS-CA* , 9mm . Listed through January 1, 2027 . View roster source

Sig Sauer P320, M18, Striker Fired, Semi-automatic, Polymer Frame Pistol, 9MM, 3.9" Barrel, PVD Finish, Coyote Tan, SIGLITE Night Sights, Manual Thumb Safety, Optics Ready, 10 Rounds, 3 Magazines, California Compliant 320CA-9-M18-MS-CA

Key Details
Brand Sig Sauer
Manufacturer Part Number 320CA-9-M18-MS-CA
UPC 798681691968
SKU SG320CA-9-M18-MS-CA
Current Stock 46 available
Quantity Updated Mar 23, 2026 7:00 AM
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Purchase Requirements
  • This product requires FFL processing before pickup or transfer.
  • Age verification is required before checkout completion.
  • California compliance or distributor restriction review may apply.
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

The P320-M18 California Compliant comes standard with SIGLITE night sights and a removable night sight rear plate. The slide is optic-ready and directly compatible with the ROMEO-X, ROMEO1 PRO, and ROMEO 2 red dot optics. The slide and grip module are the same coyote tan as the military version, and it includes (3) 10-round magazines. The P320-M18...chosen by the U.S. Marine Corps and the U.S. Military, is now available in California.

Features
  • SIGLITE Front/Night Sight Rear Plate
  • PRO RX Footprint
  • M1913 Accessory Rail
  • 3.9 Carbon Steel Barrel"
  • Ambidextrous Safety
  • Carry Length Coyote Grip Module
Specifications
UPC: 798681691968
Manufacturer: Sig Sauer
Manufacturer Part #: 320CA-9-M18-MS-CA
Model: P320
Model (Alt): M18
Action: Semi-automatic
Size: Carry
Barrel Length: 3.9"
Capacity: 10 Rounds
Sights: Night Sights
Safety: Manual Safety
Type: Striker Fired