Product Overview
- Short-barreled rifle (SBR) chambered in 9mm Luger with a 4.5-inch barrel.
- Short-stroke gas piston operating system; folding stock and ambidextrous safety.
- 35+1 round capacity; black anodized aluminum receiver.
- Must ship to a Federal Firearms License (FFL) holder.
Overview
The SIG SAUER MPX SBR is a 9mm Luger short-barreled rifle built on the MPX platform. It operates via a short-stroke gas piston system and features a 4.5-inch barrel with a 1:10 twist rate. The black anodized aluminum receiver is paired with a folding stock and an ambidextrous safety selector. The MPX SBR accepts a 35-round magazine for a 35+1 total capacity.
Key Features
- Caliber: 9mm Luger — pistol-caliber SBR configuration on the MPX platform.
- 4.5-inch barrel — compact overall length when stock is folded.
- Short-stroke gas piston operation — keeps combustion gases away from the receiver interior.
- Folding stock — reduces overall footprint for storage and transport.
- Ambidextrous safety selector — accessible from either side of the receiver.
- Black anodized aluminum receiver — standard MPX construction.
- 35+1 round capacity — ships with a 35-round magazine.
FFL & Compliance
This short-barreled rifle is an NFA-regulated item and must ship to a Federal Firearms License (FFL) holder. Buyers are responsible for understanding and complying with all applicable local, state, and federal laws, including NFA transfer requirements. Magnum Ballistics does not provide legal advice or determine individual eligibility. We ship only to the FFL dealer selected during checkout.
