Real Steel Background

The SIG Sauer MPX PCC (Pistol Caliber Carbine) represents the full-length rifle configuration of the MPX platform, chambered in 9mm and designed for competitive shooting, home defense, and tactical applications where a longer sight radius and extended rail space provide a distinct advantage. Unlike the ultra-compact MPX-K variant, the PCC configuration pairs a longer barrel and handguard with a proper stock, delivering improved accuracy potential and greater accessory mounting real estate while retaining the short-stroke gas piston system that distinguishes the MPX from legacy blowback SMGs. The MPX platform was developed by SIG Sauer as a modern, modular alternative to the MP5, featuring AR-style controls for intuitive handling and a gas system derived from the MCX rifle lineage. The Copperhead styling brings an aggressive, purposeful aesthetic to the PCC format, combining the extended reach of a carbine with the unmistakable SIG modular DNA.

Product Details

The STRATOS X MPX PCC Copperhead GBB Airsoft Rifle pairs the full-length PCC configuration with the distinctive Copperhead aesthetic. The metal upper receiver features a picatinny rail along its full top surface, while the metal lower receiver extends rearward with a picatinny rail interface for stock attachment.

The handguard is a 405mm metal M-Lok unit with a skeletal structure that significantly reduces overall weight without sacrificing rigidity. M-Lok slots are positioned on the left, right, top, and bottom of the handguard for maximum accessory mounting versatility, and an additional picatinny rail segment sits at the front top of the handguard for forward-mounted optics or accessories. The 245mm skeleton stock features a bone-structure cutout design that minimizes weight, includes sling sockets on both sides, and is fitted with a rubber stock pad for shoulder contact comfort. The stock attaches via a metal foldable stock mount, allowing the stock to be folded to the side for compact transport.

The metal outer barrel measures 360mm and is capped with a 60mm muzzle brake on a 14mm CCW thread, providing compatibility with standard muzzle devices and tracer units. A polymer pistol grip and a metal 30-round MPX-style gas magazine with polymer base complete the external build.

The steel control package includes an ambidextrous fire selector, a skeletal triangular flat trigger with a bone-structure cutout that significantly reduces weight while maintaining rigidity, ambidextrous magazine release, and ambidextrous bolt catch. A metal ambidextrous charging handle ensures full left-hand or right-hand charging capability.

Internally, the rifle employs an APFG-inspired system that delivers a snappy, fast, and stout cyclic rate, giving the user a highly enjoyable shooting experience. The inner barrel is VSR-spec, allowing the user to easily upgrade with aftermarket precision barrels and hop-up buckings for enhanced accuracy and performance. Overall, it stands as an excellent choice for anyone seeking a modern pistol-caliber carbine that moves beyond the MP5 paradigm.

Key Features

• Metal upper receiver with full-length top picatinny rail providing a stable, continuous mounting platform for optics, backup sights, and accessories

• Metal lower receiver with rear picatinny rail interface for secure stock attachment in the modular MCX-style configuration

• 245mm skeleton stock with bone-structure cutout design that significantly reduces weight while featuring sling sockets on both sides and a rubber stock pad for comfortable shoulder contact

• Metal foldable stock mount allowing the stock to fold to the side for compact transport and rapid deployment in confined spaces

• 405mm metal M-Lok handguard with skeletal structure minimizing weight while providing M-Lok slots on all four sides plus a dedicated picatinny rail segment at the front top for maximum accessory mounting versatility

• Metal 360mm outer barrel paired with a 60mm muzzle brake on 14mm CCW thread for muzzle device and tracer unit compatibility

• Polymer pistol grip offering comfortable ergonomics and a familiar AR-style grip angle for intuitive handling

• Metal 30-round MPX-style gas magazine with polymer base delivering realistic capacity and balanced weight distribution

• Steel ambidextrous fire selector enabling intuitive safe, semi, and full-auto mode changes from either side of the receiver

• Steel skeletal triangular flat trigger with bone-structure cutout design that significantly reduces trigger weight while maintaining structural rigidity for a crisp, consistent pull

• Steel ambidextrous magazine release and steel ambidextrous bolt catch allowing full left-hand or right-hand operation without compromise

• Metal ambidextrous charging handle providing smooth, symmetric charging action from either side of the receiver

• APFG-inspired internal system delivering a snappy, fast, and stout cyclic rate that provides an enjoyable and responsive shooting experience with every trigger pull

• VSR-spec inner barrel allowing easy aftermarket upgrades with precision barrels and hop-up buckings for enhanced accuracy and performance

• Full-length PCC carbine configuration with Copperhead styling offering a modern pistol-caliber alternative to the MP5 with extended rail space and improved sight radius