Description
The SIG SAUER P320-FLUX LEGION is a premium, optics-ready pistol chassis system from Flux Defense. Engineered for the SIG P320 FCU, it transforms your handgun into a stabilized platform. The chassis is constructed from 7075-T6 aluminum with a hard-anodized Legion Gray finish. It integrates a folding brace, integrated magazine storage, and a full-length Picatinny rail for unmatched modularity and rapid deployment from a compact package.
Key Features
- Flux Defense Raider chassis system for SIG P320 Fire Control Unit (FCU)
- Integrated folding brace for enhanced stability and compact storage
- Built-in spare magazine carrier within the grip frame
- Full-length M-LOK and top Picatinny rail for accessories and optics
- Constructed from durable 7075-T6 aluminum with Legion Gray hard-anodized finish
Specifications
| Caliber / Type | Accepts SIG P320 FCU (Caliber depends on installed slide/barrel) |
|---|---|
| Material | 7075-T6 Aluminum |
| Finish | Hard-Anodized Legion Gray |
| Compatibility | SIG SAUER P320 FCU (Full-size, Carry, Compact, Subcompact grip modules) |
| Weight | Approx. 2.2 lbs (chassis only) |
The Flux Raider chassis leverages the P320’s modular FCU system, allowing users to reconfigure calibers and slide lengths with a single registered component. The 7075-T6 aluminum construction provides a rigid platform that improves control, especially with high-volume 9mm or .357 SIG loads. This design is favored for tactical applications and as a highly compact, truck or pack-ready stabilization system.




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