Description
The SIG Sauer P320-M18 is the commercial variant of the U.S. Armed Forces’ official M18 service pistol. Manufactured by SIG Sauer, this striker-fired handgun features a durable stainless steel slide with a Coyote PVD finish and a Coyote-tan polymer grip module. It stands out with its manual safety, optic-ready slide cut for the Romeo1Pro footprint, and X-RAY3 Day/Night sights, delivering military-proven performance in a civilian-legal package.
Key Features
- Official U.S. Military M18 Configuration with Manual Safety
- Optic-Ready Slide Cut for SIG Romeo1Pro Footprint
- Coyote PVD-Coated Stainless Steel Slide & Coyote Polymer Grip
- SIG Sauer X-RAY3 Day/Night Suppressor-Height Sights
- Includes Two 17-Round Magazines and Hard Case
Specifications
| Caliber / Type | 9mm Luger / Semi-Automatic Pistol |
|---|---|
| Material | Stainless Steel Slide, Polymer Frame |
| Finish | Coyote PVD (Slide), Coyote Tan (Grip Module) |
| Compatibility | P320-M18; shares FCU with P320 platform |
| Weight | 29.6 oz (Unloaded) |
The P320-M18’s reliability stems from its military-spec modular fire control unit (FCU), which is the serialized component. This design allows for easy caliber conversion and grip customization. Chambered in 9mm, it balances controllability with terminal performance. The striker-fired action and corrosion-resistant finishes are engineered for duty-grade use, making it a robust choice for both defense and range applications.




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