Description
The Authentic P320-FLUX LEGION is a premium chassis system from SIG SAUER, engineered for the P320 FCU. This anodized aluminum frame provides a rigid, lightweight foundation for building a high-performance pistol. Its integrated design accepts standard P320 slides and barrels while offering enhanced modularity and a superior grip angle for competitive shooting and duty use.
Key Features
- Manufactured from 7075-T6 aluminum for maximum durability and reduced weight.
- Features a hard-anodized Legion Gray finish for corrosion resistance.
- Integrates a full-length Picatinny rail for secure accessory mounting.
- Designed with an optimized grip angle and aggressive texturing for control.
- Accepts standard P320 Fire Control Units (FCU), slides, and barrels.
Specifications
| Caliber / Type | P320 Chassis System / Frame |
|---|---|
| Material | 7075-T6 Aluminum |
| Finish | Hard-Anodized Legion Gray |
| Compatibility | SIG SAUER P320 FCU |
| Weight | N/A |
The P320-FLUX LEGION chassis utilizes a 7075-T6 aluminum alloy, a material chosen for its high strength-to-weight ratio common in aerospace applications. This construction provides a stable platform that minimizes flex, directly improving accuracy with supported P320 uppers in 9mm, .357 SIG, and .40 S&W. The design is favored for USPSA Carry Optics divisions and as a duty upgrade.




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