Out of stock
Sig Sauer P320 M18 Carry 9mm 3.9" Pistol, Coyote Tan - 320CA-9-M18-MS
Out of stock

Sig Sauer P320 M18 Carry 9mm 3.9" Pistol, Coyote Tan - 320CA-9-M18-MS

SKU 5165491857
Brand Sig Sauer
Model Number 320CA-9-M18-MS
UPC 798681607556
Customers must read Compliance Information before purchasing.

Product Details


  • Brand: Sig Sauer
  • Model: P320 M18
  • Caliber: 9mm
  • Capacity: 17 or 21
  • Barrel Length: 3.9"
  • OAL: 7.2"
  • Frame Size: Carry
  • Frame Material: Stainless Steel
  • Barrel Material: Carbon Steel
  • Finish: Coyote PVD
  • Accessory Rail: M1913
  • Trigger: Standard
  • Weight: 28.1 oz.


The M18 was recently issued to all branches of the U.S. Military and was chosen as the official sidearm of the U.S. Marine Corps. The P320-M18 is the commercial version that brings the same unprecedented accuracy, extreme reliability and unmatched durability the military demands.

The P320-M18 comes standard with SIGLITE night sights and a removable night sight rear plate. The slide is optic ready and directly compatible with the ROMEO1 PRO. The slide and grip module are the same coyote tan as the military version, and it includes (1) 17 round magazine and (2) 21 round magazines. The P320-M18 that was chosen by the U.S. Marine Corps and the U.S Military is now available to you for the first time.


Q & A

Retail Stock


Must be 21 or older to purchase.
All NFA Rules Apply.
These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.
It is the customer’s responsibility for understanding state laws regarding magazine capacities. Palmetto State Armory abides by all state regulations regarding the sale of high capacity magazines. We DO NOT ship high-capacity magazines with firearms to certain states. We WILL NOT replace high capacity magazines with state compliant magazines. We DO NOT offer refunds in place of the magazines. Please see our terms and conditions for a list or restricted states.
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).