Sig Sauer P320-M18 9mm Compact in FLUX Defense Raider Chassis with SilencerCo Threaded Barrel and Compensator
This Sig Sauer P320-M18 compact 9mm is custom-configured in a FLUX Defense Raider chassis with an integrated Speedload spare-mag system and a spring-assisted telescoping rear extension. It features a SilencerCo threaded barrel paired with a two-port compensator and a left-side serrated slide charging handle. The slide wears a coyote PVD finish and retains the P320 M18 factory markings. Two 21-round magazines are included.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: There are signs of exterior rust that can be removed with careful cleaning and attention. The bore is clean and shiny, and the rifling is in great shape.
What’s Included
- FLUX Defense Raider chassis for SIG P320/M17/M18 (installed; spring-assisted telescoping rear extension with integrated spare-mag carrier)
- SilencerCo threaded 9mm barrel (installed)
- Two-port muzzle compensator (installed)
- Left-side slide charging handle (installed)
- 2x 21-round magazines (extended steel, marked 'MADE IN ITALY')
The P320-M18 foundation delivers a compact, striker-fired 9mm with an ambidextrous manual safety and a serialized stainless-steel fire control unit. The coyote PVD slide is factory marked "SIG SAUER P320 M18" and cut with front and rear serrations for confident manipulation. The 3.9-inch SilencerCo barrel is threaded and marked on the hood.
The FLUX Defense Raider chassis adds a spring-assisted telescoping rear extension riding on twin metal rails with a polymer butt, plus an integrated spare-mag Speedload system and separate spare-mag release. The chassis includes a molded accessory rail at the lower front and features molded-in markings such as "NOT A VFG," "SPEEDLOAD SYSTEM," and "AMERICAN MADE," along with patent information.
A two-port compensator is secured to the threaded barrel with side set screws to help manage muzzle movement. A left-side, serrated charging handle is installed on the slide for additional leverage during manipulations without interfering with the slide serrations.
This setup is configured for extended runtime with a 21+1 capacity and includes two 21-round magazines. The frame presents an FDE/tan finish with black inserts, complementing the coyote PVD slide for a cohesive duty-style appearance while maintaining the P320’s proven control layout.