Description
SIG Sauer MPX PCC 9mm Rifle, 16" Barrel, Black, 35-Round
The SIG MPX PCC is SIG’s 9mm piston firearm. The MPX runs a short-stroke piston and AR-style controls on 9mm, with magazines that are SIG’s own MPX pattern.
It does not take Glock, P320, or AR-15 magazines. The top rail is optic-ready. A factory optic is not installed. Pistols ship with SIG’s folding PCB. The SBR uses a stock and needs NFA paperwork.
This configuration
This is the stocked 16 in. gun. The K and Copperhead are pistols with SIG’s folding PCB. You do not need NFA paperwork for this PCC the way you do for a 4.5 in. MPX with a stock. Twist is 1:10. Threads under the compensator are M13.5 × 1 mm. The Timney MPX trigger and the slim handguard are the reason people buy the PCC for matches and range work. The stock folds and telescopes so it stores shorter than a fixed-stock carbine. This rifle ships to a licensed FFL.
What ships
A factory optic is installed only when this page says so. This item ships to a licensed FFL. See the SIG MPX collection.
Specifications and Included Items
- Model: RMPX-16B-9-35
- Platform: MPX PCC rifle
- Caliber: 9mm Luger
- Barrel: 16 in. carbon steel, M13.5 × 1 mm, three-chamber compensator
- Twist: 1:10
- Overall length: 35.25 in.
- Width: 2.5 in.
- Height: 7.5 in.
- Weight: 6.63 lb
- Operating system: Short-stroke piston, closed rotating bolt
- Trigger: Timney single-stage
- Stock: Folding telescoping
- Handguard: Slim M-LOK
- Finish: Black hard-coat anodized
- Magazines included: One 35-round MPX polymer magazine
- Sights: Optic-ready rail; no factory optic
- FFL: Rifle; ships to a licensed FFL dealer









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