The Flux Raider X is a premium P320 chassis system — stronger, lighter, and faster than ever, with over a dozen enhancements for durability, ergonomics, and compatibility. Not a firearm. Upgrade your P320 to a proven PDW chassis trusted by professionals.

Raider X P320 — Stronger, Lighter, Faster

The Raider X P320 is the next evolution of the Flux Raider platform — a premium personal defense weapon chassis system engineered for the SIG Sauer® P320, M17, and M18 family of pistols. It’s not a firearm — it’s a purpose-built chassis upgrade, born from real-world feedback from special operations units and thousands of everyday users. Stronger, lighter, faster — and ready to keep you in the fight.

Key Improvements on the Raider X

Reliability & Durability

• Overtravel stop prevents over-insertion of magazines

• Reinforced frame with upgraded single-gate mold (stronger, fewer weak points)

• Molded-in insert for the ejection spring bolt for better reliability

• Stronger mag catch spring for positive magazine locks

• Upgraded fencing around the dual mag release

• Increased rail-lock spring force

Ergonomics & Usability

• Redesigned grip top for better access to mag release and safety

• Front frame reshaped to accept extended rails for increased LOP

• Smoother magwells for faster reloads

• Improved grip texture

• New matte finish reduces glare

Compatibility Upgrades

• Enlarged suppressor cutout for shorter barrels, comps, or cans

• Added slot to bottom Picatinny rail for more accessory options

• Optic rail adjusted and slotted for improved fit with all optics

• Slide channel under optic rail raised for better clearance with adjustable iron sights

Compatibility

• Compatible with SIG M17/18 and P320 (9mm, .40 S&W, .357 SIG)

• NOT compatible with: P320 XTEN, .45 ACP variants, suppressor-height iron sights, or 15-round magazines

• M17/18 manual safeties must be removed and replaced with an OEM pin (simple mod)

• Safety mechanism may not work with all aftermarket or adjustable triggers — verify before use

• To use with P320 carry, compact, or subcompact slides, you must run a comp, threaded barrel, or suppressor — failure to do so may cause injury

Legal & Shipping Notice

• This is a chassis system only. Does not include firearm, fire control group, slide, holster, sling, lights, red dot, or any accessories pictured.

• The brace version is not designed or intended to be shouldered. Stocks are available for customers who wish to legally SBR their P320.

• All NFA and state laws apply. Flux Defense does not offer legal advice — know and follow all local, state, and federal regulations.

• We do not ship to California, New York, Washington, Connecticut, Massachusetts, or outside the USA.