Flux Defense Raider 365 Ultralight Pistol Chassis – FDE

The Flux Defense Raider 365 Ultralight pistol chassis (brand part no. 161-00026) gives the Sig Sauer P365 a rigid aluminum frame and a folding brace, finished this time in flat dark earth. It’s designed for shooters who want a braced, two-handed grip on a pistol without giving up its compact footprint. The FDE finish matches common EDC and duty color schemes, making it a natural pairing for a coyote or FDE-themed build. Home defense and range shooters both benefit from the added stability the chassis brings to a subcompact platform.

Key Specifications

• Machined from aircraft aluminum for a rigid, lightweight chassis body.
• Finished in flat dark earth hard-coat anodizing with black nitrided hardware for corrosion resistance.
• Built specifically for the Sig Sauer P365 platform, compatible with P365XL, TACOPS, and FUSE slide assemblies.
• Accepts 17 to 21-round P365 magazines; it does not run the shorter 12 to 15-round factory magazines.
• Includes a spring-loaded folding side arm that deploys the brace fully with a single button press.
• Features integrated dual-magazine storage on the chassis body with its own release button.

Frequently Asked Questions

Does this fit every P365 slide? It’s built around the P365XL, TACOPS, and FUSE slide assemblies, so verify your slide before ordering.

Can I use my factory 12-round magazine? No, the chassis is sized for 17 to 21-round P365 magazines only.

How does the brace deploy? A spring-loaded folding arm extends it to the ready position with one press of the release.

Buy the Flux Defense Raider 365 Ultralight Pistol Chassis

Give your P365 a rigid FDE chassis built for a fast-deploying brace. Order the Flux Defense Raider 365 Ultralight from our pistol grips lineup, and our Lubbock, Texas team can help confirm slide fitment before it ships.