Sig Sauer P320-FLUX LEGION


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Sig Sauer P320-FLUX LEGION

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.


  • Rapid Deploying Stabilizing Brace
  • Ambidextrous Dual Magazine Release System
  • LEGION Gray Slide With Integrated Compensator
  • Non-Reciprocating Picatinny Optic Mount
  • Integrated Flared Magwell

“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. Check out our podcast with Arrius and Ben here.




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.

Additional information

Weight 54 oz
Dimensions 12 × 12 × 6 in


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