Description
The Shop P320-XFULL is a premium, serialized, modular FCU (Fire Control Unit) designed for the SIG Sauer P320 platform. Manufactured to strict specifications, this skeletonized chassis features a durable stainless steel construction with a black nitride finish for enhanced corrosion resistance. It serves as the legal firearm component, allowing you to build a custom, full-size P320 pistol by adding your choice of grip module, slide, and barrel.
Key Features
- Serialized, Modular Fire Control Unit (FCU) – The federally regulated firearm component.
- Stainless Steel Construction – Provides a robust and durable foundation for your build.
- Black Nitride Finish – Offers superior wear and corrosion resistance.
- Full-Size (X-FULL) Compatible – Designed for use with P320 full-size grip modules and slides.
- Skeletonized Design – Reduces weight while maintaining structural integrity.
Specifications
| Caliber / Type | Modular FCU (Multi-Caliber Compatible) |
|---|---|
| Material | Stainless Steel |
| Finish | Black Nitride |
| Compatibility | SIG Sauer P320 Full-Size (X-Series) Platforms |
| Weight | N/A (Weight varies with complete build) |
This FCU is the engineered heart of the P320 system. Its stainless steel build ensures reliable ignition and long-term durability, while the nitride finish protects critical internal surfaces. As the serialized part, it accepts factory P320 components in 9mm, .357 SIG, and .40 S&W, allowing for a truly personalized duty, competition, or defense pistol built to your exact specifications.




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