SIG Sauer P320-M18 9mm Compact, Manual Safety, Coyote PVD, 3.9-inch Barrel, Excellent Condition, Three Magazines
The SIG Sauer P320-M18 in 9mm Luger delivers the compact M18-style configuration with an ambidextrous manual thumb safety, coyote PVD-finished stainless slide, and modular polymer grip module. This example is in excellent condition and comes with three magazines, including two 21-round extended mags and one 17-round mag, plus the factory case and manual.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: There are minimal markings from previous handling and use. Please refer to the photos for a close look at all surfaces and edges.
What’s Included
- 2x 21-round steel magazines
- 1x 17-round steel magazine
- SIG Sauer factory hard case
- SIG Sauer owner's manual and safety literature
The P320-M18 compact format pairs a 3.9-inch barrel with an overall length of approximately 7.25 inches and an unloaded weight of about 24.5 ounces. It is a striker-fired, semi-automatic pistol configured with a curved trigger and an ambidextrous manual thumb safety.
Its stainless-steel slide wears a durable coyote PVD finish and features front and rear serrations for confident manipulation. The frame is a coyote-colored modular polymer grip module that interfaces with the P320’s removable fire-control unit architecture.
Sight configuration is straightforward and practical: a metal front post with a dot and a square-notch rear sight set on a removable plate. The slide also incorporates an external extractor for reliable operation.
An integral accessory rail with three cross-slots supports common light or laser attachments. This pistol includes two extended 21-round magazines and one 17-round magazine, enabling a 21+1 capacity when an extended mag is inserted.

