Stratos X MPX GBB SMG Rifle in Black (STR-MX-02)

Stratos X MPX GBB SMG Rifle in Black (STR-MX-02)

If you’ve been eyeing the real SIG MPX but want that same modular style and punch in the airsoft world, the Stratos X MPX GBB SMG Rifle is the answer. Built to exacting standards and powered by a proven gas blowback system, this full-length replica offers elite-level realism, recoil, and performance — all wrapped up in the unmistakable design of one of the most recognisable pistol-calibre carbines around.

This isn’t just another GBB SMG. With CNC-machined aluminium forming the monolithic upper, handguard, and folding stock, and a diecast aluminium lower for that authentic heft, the MPX feels and handles like the real thing. The externals are robust, the tolerances are tight, and the build quality is undeniable. The result? A rifle that feels right at home whether you're clearing tight rooms or engaging targets across the field.

Internally, it’s running a VFC-compatible gas blowback system — and that’s good news. You get solid gas efficiency, strong cycling, and magazine compatibility with existing VFC MPX GBB mags. FPS is rated between 360 and 400 with 0.20g BBs, depending on ambient conditions and gas type. That’s hot enough for outdoor engagements, but it can be tamed with lower-power gas or heavier BBs if needed. Recoil is crisp, clean, and utterly addictive. It kicks, it clacks, and it leaves AEGs in the dust when it comes to feel.

Everything on this gun is ambidextrous — selector switch, mag release, bolt catch — making it a natural fit for both left- and right-handed players. Transitions are smooth. Reloads feel second nature. You’re not fighting the rifle; you’re working with it. This makes the MPX not only a powerful skirmish tool but a viable training platform for those wanting AR-style controls in a more compact body.

The extended M-LOK handguard gives you all the room you need for tactical add-ons — whether that’s a torch, vertical grip, or PEQ. A full-length 20mm Picatinny rail runs up top for mounting red dots, LPVOs, or magnifiers. Meanwhile, the folding stock locks up tight and tucks cleanly to the side, giving you options for tight transport or CQB gameplay. It’s functional, modular, and looks absolutely top-tier.

It comes with a 30-round gas magazine — realistic in feel and size, perfect for shot discipline and immersive play. If you’re after a mag-dumping box mag behemoth, this isn’t it. But if you want controlled, accurate fire with a visceral kick and some of the best build quality on the gas blowback market, the Stratos X MPX delivers in full.

Whether you're an experienced GBBR user looking for your next serious rifle or someone stepping into the world of gas for the first time, this MPX doesn’t disappoint. And if you see it cheaper anywhere else? Hit us up — we’ll beat the price, guaranteed.

Highlights

• Full-size replica of the SIG MPX Carbine platform 
• CNC aluminium upper and M-LOK handguard with diecast aluminium lower
• Gas blowback system compatible with VFC MPX magazines
• Fully ambidextrous AR-style controls (selector, mag release, bolt catch)
• 360–400 FPS with strong recoil and crisp blowback action
• Folding stock for transport or CQB adaptability
• Steel internal components and controls for durability
• Realistic 30-round gas magazine included

What's Included

• Stratos X MPX GBB SMG Rifle (Full-Length – Black) 
• 30-round gas magazine
• User manual
• Cleaning/unblocking rod

Technical Specifications

• Type: Gas Blowback Rifle (GBB)
• Brand: Stratos X
• Platform: SIG MPX Carbine
• Weight: Approx. 2.7kg
• Construction: CNC Aluminium Upper, Diecast Aluminium Lower, Steel Internals
• FPS: 360–400 FPS (with 0.20g BBs)
• Fire Modes: Safe / Semi / Full Auto
• Hop-Up: Adjustable
• Magazine: 30-round (VFC MPX compatible)
• Rail System: M-LOK Handguard + Full-Length 20mm Top Rail
• Controls: Fully Ambidextrous