Description
The Shop P320-M18 CALIFORNIA is a compliant version of SIG Sauer’s renowned M18 pistol, engineered specifically for California’s roster. This model features a manual safety and a loaded chamber indicator to meet state requirements. It retains the core P320 modularity, allowing for future grip module and caliber exchange kit upgrades, and comes with SIG’s signature Nitron finish over a stainless steel slide for durable corrosion resistance.
Key Features
- California-compliant with manual thumb safety and loaded chamber indicator.
- Modular FCU (Fire Control Unit) for easy grip frame and caliber conversion.
- Stainless steel slide with durable SIG Sauer Nitron finish.
- Includes both 10-round compliant magazines and SIGLITE night sights.
- Based on the official U.S. Military M18 service pistol platform.
Specifications
| Caliber / Type | 9mm Pistol |
|---|---|
| Material | Stainless Steel Slide, Polymer Grip Module |
| Finish | Nitron |
| Compatibility | SIG P320 M18; accepts P320 grip modules & conversion kits |
| Weight | 29.6 oz (unloaded) |
The P320-M18’s reliability stems from its striker-fired, short-recoil operated system and corrosion-resistant internal components. Chambered in 9mm, it offers manageable recoil for duty, home defense, or sport. The modular FCU is a serialized component, enabling legal customization of grip size and caliber with official SIG Sauer exchange kits, making it a versatile long-term platform.




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