SIG Sauer P320-M18 9mm Compact, Coyote PVD, 3.9 in Barrel, SIGLITE Night Sights, Manual Safety, 3x 10-Round Magazines
The P320-M18 is the commercial analogue of the U.S. military's compact MHS sidearm, distinguished by its coyote colorway and modular P320 architecture. This compact 9mm features a coyote PVD slide, SIGLITE night sights, and an optic cut with a removable rear sight plate. It includes three 10-round factory magazines and comes in the SIG Sauer factory case with the manual and M18 patch.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are some scratches and blemishes present on the exterior.
What's Included
- 3x 10-round factory steel magazines (marked "MADE IN ITALY" with SIG-branded baseplates)
- SIG Sauer factory hard case (gray)
- SIG Sauer P320 operator's manual
- M18 patch
This compact P320-M18 pairs a 3.9 in carbon steel barrel with a coyote PVD-finished slide and a coyote-tan polymer grip module. Built in the USA, it retains the look and configuration associated with the M18 program while offering commercial availability.
The modular design centers on a removable stainless-steel fire control unit housed within a stainless receiver chassis. Practical slide features include front and rear cocking serrations, an external extractor, SIGLITE night sights, and an optic cut with a removable rear sight plate.
Controls are set up for duty use: a striker-fired action, a manual thumb safety with ambidextrous levers, and ambidextrous slide catch levers. A standard curved trigger and a four-slot M1913 accessory rail on the dustcover round out its carry-ready configuration. The grip module is a carry-length, medium-size polymer unit.
Capacity is 10+1 in 9mm Luger, and this example includes three factory 10-round steel magazines. An FCU serial prefix "M18-" is observed on the fire control unit, aligning with the model designation.



