FLUX Defense is the maker of the unique Raider chassis for P320 pistols. Buy the Raider, add your own P320 fire control group and slide and you have yourself a surprisingly capable micro PDW. It’s such a unique and effective design, in fact, that SIG SAUER has teamed up with the FLUX folks, adding P320 Legion grade parts to offer a new complete firearm, the SIG SAUER P320-FLUX LEGION.

Dan Z. for SNW

In addition to its telescoping arm brace, the Legion-grade ported slide, and an excellent trigger, the P320-FLUX LEGION ships with two SIG 30-round magazines, giving you a whopping 60+1 rounds of onboard ballistic deterrence. Add a red dot and the P320-FLUX LEGION makes for a very effective home defense gun or a packable, portable personal defense weapon that’s ready to go anywhere.

Dan Z. for SNW

Here’s SIG’s announcement . . .

The SIG SAUER LEGION has joined forces with industry innovator FLUX Defense to create the SIG / FLUX factory built P320-FLUX LEGION collaboration. Designed with feedback from the Special Operations Community, the P320-FLUX LEGION delivers on innovation and enhancements that have become the trademark features of SIG SAUER LEGION Series designs. 

“The P320-FLUX LEGION takes a 9mm handgun, using the SIG SAUER P320 Fire Control Unit, and transforms it into an easily concealed PCC style platform, with the stability of a carbine and loads of LEGION upgrades to bring more speed, maneuverability, and control to conceal carry,” said Robby Johnson, Chief Marketing Officer, SIG SAUER, Inc. “This build has a long list of features including a single-finger fast deploying spring brace for rapid deployment, 30-round capacity, an integrated compensator in the custom LEGION slide, and a dual-mag release system to get you started.  Add to that the endless amounts of customization that can be achieved with the front and rear picatinny mounts and an ambidextrous safety we are sure that the P320-FLUX LEGION is destined to be a LEGION fan favorite.”
The P320-FLUX LEGION is a complete SIG Factory build using a P320 Fire Control Unit (FCU) with a LEGION skeletonized trigger, a full-size LEGION Gray slide with integrated compensator housed in the LEGION Gray FLUX Defense chassis with rapid-deploying Stabilizing Brace.  Build features include XRAY3 Day/night sights, an ambidextrous dual magazine release system, front picatinny mount, rear non-reciprocating picatinny optic mount, an integrated flared magwell, and ambidextrous safety.  The full build ships fully assembled with (2) extended 30-round P320 magazines.
“A collaboration of this scale is an exciting first for us, but given the reputation SIG has for quality, innovation and disrupting the industry, which FLUX Defense also shares, this partnership came naturally to everyone,” added Arrius Sorbonne, FLUX Defense Co-Owner.
Caliber: 9mm
Capacity: 30
Grip Module: LEGION Gray FLUX Chassis
Overall length: 10.9 inches (collapsed)
Overall height: 6.1 inches
Overall width:  1.6 inches
Barrel length: 3.9 inches
Sight Radius: 5.9 inches
Weight (w/magazine): 49.2 ounces
The LEGION Series pistols is an exclusive product line developed by SIG SAUER based on input from elite shooting professionals and designed to exceed the expectations of the serious shooter.  The SIG SAUER LEGION is an exclusive members-only access program available to owners of the SIG SAUER LEGION Series of firearms. Upon registration of any LEGION Series firearm, members receive a complimentary case, exclusive access to LEGION gear and merchandise, and receive exclusive communications from SIG SAUER and the LEGION.
To learn more about the SIG SAUER P320-FLUX LEGION, the full SIG SAUER product line, or locate a SIG SAUER authorized dealer visit
MSRP will be about $1499 and it’s hitting stores now.

5 Responses

    1. Might mess with one when it not a bag of felonies in my area but more because getting any kind of smg or pcc in 357 Sig is a painful process.

  1. Will this be sold in Calfornia. I know I’m throwing !@#$ at a wall but I can’t find nothing about it being sold in this state and with all these lawsuits going on if it will be complaint or not.


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