Used Sig Sauer P320 FLUX Legion 9mm 3.9" Gray P 320 COMP +2 MAGS & ORIG CASE

Sig Sauer P320 FLUX Legion P 320 Raider Chassis

How Buying WorksEnding October 20, 2026 at 10:30 PM

Key Features

  • Item Type: Semi Auto Pistols
  • Action: Striker
  • Manufacturer: Sig Sauer
  • Capacity: 30 1
  • Model: P320
  • Barrel Length: 3.9"
  • Caliber: 9mm Luger
  • Finish: Legion Gray
  • Overall Condition: Excellent

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Product Description

    SIG Sauer P320 FLUX Legion 9mm Compact, Legion Gray, 3.9 in Barrel, Integrated Compensator, XRAY3 Sights, 30+1, 2x 30-Round Mags

    This factory SIG Sauer x FLUX Defense collaboration pairs the P320 fire control unit with a FLUX Raider-pattern chassis finished in Legion Gray. It adds a rear non-reciprocating top Picatinny optic mount, an integrated forward spare-magazine carrier, and a compact 3.9 in compensated slide. The collapsing, rapid-deploying brace and XRAY3 day/night sights make this a feature-dense, purpose-built FLUX Legion variant.

    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.

    Rifling: Excellent - Sharp lands and grooves.

    Specific Condition Notes: Shows minimal markings from previous handling and use. The bore is bright and clean. Refer to pictures for close-ups.

    What's Included
    • SIG SAUER factory hard case
    • SIG SAUER owner's manual
    • Two 30-round 9mm SIG P320-pattern magazines (with witness windows)

    The FLUX Legion chassis integrates a forward spare-magazine carrier to speed reloads while keeping the profile compact. The chassis is molded with the marking NOT A VFG and finished to match the Legion Gray scheme.

    The compact-length slide measures 3.9 inches and incorporates an integrated compensator to help tame muzzle rise. SIG XRAY3 day/night sights are installed, with a green-dot front and a low-profile notch rear for fast sight acquisition.

    Controls are ambidextrous and purpose-built, including manual safety paddles marked FIRE and a dual-magazine release. A skeletonized trigger contributes to the Legion feature set, and the polymer frame and brace keep weight in check.

    Mounting and accessory options include a rear non-reciprocating top Picatinny optic mount and a front accessory rail. The brace is polymer with twin guide rods and a spring-assisted, rapid-deploying, collapsing design. Capacity is 30+1, and the pistol comes with two extended magazines.

Specifications

Item TypeSemi Auto Pistols
ManufacturerSig Sauer
ModelP320
SubmodelFLUX Legion
Caliber9mm Luger
Overall ConditionExcellent
Bore ConditionExcellent
Manufacturer Part Number320FLUX-9-LEGION
ActionStriker
Capacity30 1
Barrel Length3.9"
FinishLegion Gray
Sight/OpticSIG XRAY3 day/night sights
What's IncludedOwner's Manual