[ < Back to platforms ]
PISTOL-CHASSISMid-Range

Flux Defense

Flux Raider for SIG P320

Premium PDW chassis converting P320 into compact carbine

No image available

Key Highlights

  • P320 FCU compatible
  • Folding brace
  • Quick deploy

Specifications

Price
$499
Weight
14.6 oz
Calibers
9mm, .40 S&W, .357 SIG
Rail Type
mlok

Capability Profile

0-10 Scale Across 8 Axes

Compatibility Tags

family: pistol-chassisfamily: handgunframe: sig-p320interface: picatinny-tophandguard: mlok

Overview

The Flux Raider transforms a SIG P320 into a PDW-style platform with improved stability and control. The Raider accepts the P320 fire control unit (FCU) and creates a chassis with integrated folding brace, M-LOK handguard, and accessory rail space. The result bridges the gap between pistol and carbine while maintaining compact dimensions.

Unlike simple chassis that just add a stock to a pistol, the Flux Raider is a purpose-designed platform. The ergonomics are optimized for two-handed shooting with the brace deployed, featuring an integrated grip angle and trigger guard that feel natural. The folding brace locks solidly when extended and tucks cleanly for storage or transport.

The Raider accepts any P320 FCU regardless of original configuration - full-size, compact, or X-series fire control units all work. The chassis maintains the P320's magazine compatibility, accepting standard and extended magazines. For P320 owners who want carbine-like control without a separate platform, the Raider provides genuine capability improvement in a compact package.

Key Features

  • Accepts any P320 fire control unit
  • Integrated folding brace
  • M-LOK handguard for accessories
  • Picatinny top rail for optics
  • Maintains P320 magazine compatibility
  • Quick FCU installation (no tools)
  • Ambidextrous controls
  • Folds flat for storage

Pros

  • +Dramatically improves P320 control
  • +Works with any P320 FCU
  • +Folds compact for storage/transport
  • +Maintains full P320 capacity
  • +Quality construction and finish
  • +Significant stability improvement

Cons

  • Adds length and weight to P320
  • P320 FCU required (not included)
  • NFA considerations if shouldering
  • Premium pricing for chassis
  • Specific to P320 platform only

Detailed Specifications

caliber
9mm (P320 FCU determines caliber)
Barrel Length
Uses P320 barrel (varies)
Overall Length
12.5 inches (folded)
weight
14.6 oz (chassis only)
barrel
Uses P320 barrel assembly
handguard
Integrated M-LOK
trigger
Uses P320 trigger
msrp
$499

Compatible Components

+191 more

Recommended Optics

View all optics

Recommended Lights

View all lights

Similar Platforms

Related Guides & Articles

Configure This Platform

Add optics, lights, and accessories to build your perfect Flux Raider for SIG P320.

Start Building