What is the SIG Flux Raider?
The SIG Flux Raider is a high-performance chassis system designed to house the SIG P320 or P365 internals. It transforms a standard sidearm into a stabilized, rapid-deployment carbine-style platform without the bulk of a traditional rifle.
Key Benefits of the Raider System:
- One-Handed Deployment: The spring-loaded brace/stock snaps into action in milliseconds.
- Superior Firepower: Integrated spare magazine storage allows for lightning-fast reloads.
- Optic Stability: Non-reciprocating optic mounts ensure your red dot stays on target, even during rapid fire.
- Modular Design: Fully compatible with your existing Sig 320 Raider or Raider Flux 365 components.
SIG P320 Flux Raider: The Full-Size Powerhouse
The P320 Flux Raider (specifically the Raider X and Legion models) is the flagship of the lineup. It’s designed for those who want the maximum capability out of their SIG P320 platform.
Features of the P320 Raider:
Dual Magazine System: Carry an extra magazine right in the grip for a “speed-load” experience that beats any traditional pistol reload.
* Improved Ergonomics: Multiple points of contact provide rifle-like accuracy out to 50–100 yards.
* Legion Enhancements: The SIG P320 Flux Legion offers a premium finish, compensator-ready slides, and skeletonized triggers for the ultimate tactical edge.
SIG SAUER P320 9MM FLUX LEGION 3.9″ BARREL
The LEGION Series from SIG SAUER expands to an all-inclusive P320 FLUX package. A fully modular platform comes complete with a LEGION gray FLUX chassis, P320 FCU, LEGION skeletonized trigger, and integrated compensated LEGION slide.
The P320-FLUX LEGION meshes a 9mm handgun with a PCC style platform, bringing the speed, maneuverability, and concealability of a pistol, combined with the stability of a carbine.
Designed with feedback from the Special Operations Community, the P320-FLUX LEGION delivers a host of innovative features and enhancements, including a single-finger fast spring brace for rapid deployment, flared integral magwell, front picatinny mount for a variety of accessories, ambidextrous safety, dual mag release system, two 30-round magazines, and a non-reciprocating picatinny optic mount for endless customization.
The all-new P320-FLUX LEGION from SIG SAUER.
P320 FLUX LEGION FEATURES:
- Rapid Deploying Stabilizing Brace
- Ambidextrous Dual Magazine Release System
- LEGION Gray Slide With Integrated Compensator
- Non-Reciprocating Picatinny Optic Mount
- Integrated Flared Magwell
PLEASE NOTE
The SIG SAUER P320-FLUX LEGION, just like previous LEGION products, will come with the 5.11 bag and a P320 coin. Due to the nature of this product, adding accessories may exceed the size of the free pistol bag.
SIG Flux Raider P320 For Sale
The P320 FLUX Legion for sale now at SIG FLUX RAIDER redefines what it means to combine adaptability with precision. A standout offering in the renowned LEGION Series by SIG SAUER, this platform fuses the dynamic capabilities of a 9mm handgun with the stability and control of a PCC-style system.
Enhanced Features for Better Performance
Every detail of the P320 FLUX LEGION is crafted with expertise to maximize your shooting experience. It includes the cutting-edge P320 FCU, a LEGION skeletonized trigger to enhance response time, and an integrated compensated LEGION slide for superior control and reduced recoil. These enhancements make this platform an exceptional choice for both tactical enthusiasts and competitive shooters seeking seamless operation and precision at every level.
Speed Meets Stability
The flux raider p320 LEGION expertly bridges the gap between pistol speed and carbine stability. Whether navigating tight environments or maintaining control over rapid-fire bursts, this firearm adapts to keep you in command. Experience unparalleled maneuverability that transforms challenges into opportunities for precision and control.
Complete Sig P320 9MM Flux Legion Build
The SIG Sauer Legion Series now expands into an all‑inclusive Flux Raider P320 package, delivering the ultimate pistol chassis conversion kit for shooters who demand versatility, performance, and tactical innovation. This P320 Flux Raider Legion system combines a legion gray Flux chassis, P320 FCU, skeletonized Legion trigger, and an integrated compensated Legion slide, creating a fully modular platform that transforms a standard Sig Sauer P320 into a high‑performance PDW (personal defense weapon).
Engineered with direct feedback from the Special Operations Community, the Flux Defense Raider Legion P320 offers groundbreaking enhancements:
- Single‑finger fast spring brace for rapid deployment
- Flared integral magwell for faster reloads
- Front Picatinny rail mount for optics, lasers, IR designators, and weapon lights
- Ambidextrous safety and dual magazine release system
- Two 30‑round magazines for extended firepower
- Non‑reciprocating Picatinny optic mount for red dot sights and advanced aiming systems
Whether you’re searching for Sig Flux Raider upgrades, P320 Flux Raider kits, or the P365 Flux Raider X platform, the Legion Series stands as the premier solution for home defense, tactical training, and concealed carry innovation. Buy sig x chassis
Ian T. –
Best Flux Raider dealers by far. 4ever loyal.
Cusby L. –
Best prices by miles, just for the love of the craft, you guys earned my respects
Thomas W. –
This weapon is one of the best PDW’s I own. It’s very compact and light. The spring-loaded brace is cool as heck, and it having the ability of using the factory 17, 21, and the 30rd factory magazines. The new magpul mags even work great too! At first I didn’t have an optic. So it was pretty cool that it did include a set of integrated tritium iron sights. I had a couple small gripes at first. The grip is comfortable, but the other side having a fat magazine saftey made it pinch the top of my hand. And don’t throw in cheap 115gr ammo through breaking it in. And clean and lube it well! Other than that. This thing is so freaking cool and compact. Thanks for an awesome product Sig!
Ryan T. –
I like everything about the pistol except I don’t like to always have a 30 round magazine hanging out of it. I purchased two P320 magazines and find it a perfect fit. You have to train! Initial tendency to grab the non reciprocating optic mount to charge the weapon and placement of non firing hand. Haven’t put enough rounds through to talk long term reliability=its a SIG>
Guss R. –
This is amazing!
This Flux Legion is one of the coolest guns I own! I attached the new Holosun DRS-TH thermal reflex sight on top along with the Holosun P.ID HC light out front and it is absolutely incredible! For such a small package that fits in a backpack, there’s nothing else in its class. It’s worth every penny!
Todd O. –
Awesome
This is my new favorite Sig
Randall C. –
Unbelievable
I had never shot a pistol with an arm brace. I am 73 with shaky hands. the arm brace steadied my aim, and my accuracy went right on point. This is a very satisfying feeling.
Stewart S. –
Awesome pistol , really fun to shoot very pleased with this purchase