SIG Sauer P320 M18 Compact 9mm Luger, Coyote PVD, 3.9 in Barrel, Night-Sight Rear Plate, Manual Ambi Safety, 2x 21-Rd & 1x 17-Rd Magazines
This SIG Sauer P320 M18 is the commercial counterpart to the U.S. military M18, finished in coyote PVD with a matching coyote-tan polymer grip module. It features a 3.9-inch carbon steel barrel, a stainless steel slide with an optic cut and removable rear sight plate, and an ambidextrous manual thumb safety. It comes well-equipped with two 21-round magazines, one 17-round magazine, a SIG factory case, and a molded dual-clip Kydex appendix holster.
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 Notes: The pistol shows minimal markings from previous handling and use. The bore is bright and clean.
What's Included
- SIG Sauer factory hard case with factory labels
- Molded dual-clip Kydex appendix holster
- Three magazines: two 21-round and one 17-round factory SIG Sauer P320 steel magazines marked "Made in Italy"
The M18 configuration delivers the compact P320 format with features specified under the Modular Handgun System. This example uses a stainless steel slide coated in coyote PVD and a coyote-tan polymer grip module with medium texture. The serialized fire control unit is visible through the frame window and carries the M18- prefix.
The slide includes front and rear cocking serrations and an optic cut with a removable rear sight plate. Sighting is provided by a SIGLITE front sight paired with a night-sight rear plate, and the sight radius measures 5.8 inches.
The striker-fired action incorporates an ambidextrous manual thumb safety. A three-slot MIL-STD-1913 accessory rail sits under the dust cover for mounting compatible accessories. Dimensions are 7.2 inches overall length, 5.5 inches in height, and 1.6 inches in width, with a listed weight of 28.1 ounces.
This pistol ships with both extended and compact-length magazines for a total capacity listing of 21+1. The factory packaging reflects model code 320CA-9-M18-MS, and the pistol is made in the USA.




