SIG Sauer P320 FLUX Legion 9mm Micro-PDW, 3.9 in Compensated Slide, Ambi Side-Charging, Front Night Sight, Legion Gray, 2x 30-Rd Mags
This factory-built micro-PDW is a collaboration between SIG Sauer and FLUX Defense that blends a 9mm handgun with a carbine-style platform for added stability. Built on a P320 FCU and finished in Legion Gray, with a black deployable brace end module for a two-tone look, it features an integrated two-port compensated slide with the front sight mounted on the comp block, ambidextrous side-charging handles, a high-visibility front night sight, and the Legion flat, skeletonized trigger. It ships with two extended 30-round magazines.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
What's Included
- SIG Sauer factory hard case with 320FLUX-9-LEGION label
- SIG Sauer safety/operating instructions card
- Gun lock
- FLUX Defense right-side pistol brace module (uninstalled)
- Two extended 30-round steel P320 9mm magazines marked Made in Italy with witness marks
The P320 FLUX Legion is a recent, factory SIG/FLUX collaboration that turns the proven P320 FCU into a compact micro-PDW package. The chassis shows FLUX and Raider lineage and includes markings such as FLUX, RAIDER, BACKUP IRONS, SPEEDLOAD SYSTEM, NOT A VFG, PATENTS PENDING, and NEWINGTON NH USA. The case label is dated 20-JUN-2025 and the firearm is marked Made in United States.
The 3.9 in barrel works with an integrated two-port compensated slide that carries the front sight on the compensator block for a consistent sight picture. Legion details include the chevron on the slide, a uniform Legion Gray finish across the slide and chassis, and the Legion flat, skeletonized trigger. A high-visibility front night sight with a green-dot front post comes installed.
Controls and operation are optimized for fast handling. Ambidextrous side-charging handles with metal operating rods are built into the chassis, and the FLUX Speedload System integrates a forward spare-mag well with the BOTH MAGS control. The pistol is striker-fired and chambered in 9mm Luger.