Airtac HPA Adapter MWS to M4
£119.99 £119.99
2 in stock
Love the kick of your Tokyo Marui MWS but hate the 35-round limit and "cool-down" of gas magazines? The Airtac HPA Adapter is the ultimate performance upgrade. It allows you to run standard M4 AEG mid-caps in your Z-System GBBR, powered by a consistent HPA line. No more gas refills, no more leaking magazine valves, and no more running dry mid-firefight.
Key Features & Performance
- Seamless Integration - Precision engineered to fit the TM MWS (Z-System) magwell with a perfect air seal.
- M4 AEG Mag Compatibility - Use your favourite M4 mid-caps or high-caps for massive ammo capacity.
- Integrated BB Latch - Features a clever internal latch system that prevents BBs from dropping out when you change magazines.
- US-Style Foster Fitting - Standard HPA connector compatible with almost all airsoft lines and regulators.
- High-Strength Construction - Built from durable, impact-resistant materials designed to withstand the violent recoil of the MWS bolt.
The "Pro" Take
The Airtac adapter is the secret weapon for GBBR players who want to compete with AEG "spray-and-pray" styles without sacrificing the tactile feedback of a gas blowback. We chose the Airtac specifically because of its feeding reliability - many 3D-printed adapters struggle with the MWS feed lips, but this one is "plug and play". It?s the perfect choice for MilSim players who want to use their MWS as a primary throughout a 24-hour event without worrying about gas temperature or carrying 12 heavy, expensive gas mags.
UK Spec & Site Performance
In the UK, the MWS is a staple at sites like Driverwood or Thunder Park Airsoft. However, the British winter is notoriously "GBB-unfriendly." This Airtac adapter completely bypasses the dreaded "cool-down" effect. Whether it's 2 degrees at a woodland site or a humid summer day in an urban CQB kill-house, your FPS will remain rock-solid. Because the MWS is inherently high-quality, this HPA conversion allows you to tune your Joules perfectly to sit just under the 1.13J limit (approx. 350 FPS) for UK sites, ensuring you stay UKARA compliant and site-legal while enjoying superior range and consistency.
Friendly FAQ
Will my bolt still lock back on empty?
Because AEG magazines do not have a bolt-stop follower that interacts with the MWS Z-System, the bolt will not lock back when you run out of BBs. You?ll know you?re empty when you hear the "dry fire" sound!
What PSI should I run?
Most MWS systems perform best between 80-110 PSI. We recommend starting low and using a chronograph to ensure you stay within your local UK site?s power limits.
Do I need to modify my rifle?
Nope! This is a non-permanent modification. You simply insert it like a standard magazine. You can switch back to your original gas magazines in seconds whenever you like.
Which M4 magazines work best?
While it fits most, we find that PTS EPM1 or G&G GOM V2 mid-caps provide the most consistent feeding under the high ROF of the MWS bolt.
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Dan was very helpful
I've already decided to make my next purchase with these guys rather than the on line store. Great customer service and very highly recommended.
Can’t recommend enough 😊
Dan's tuition was awesome, definitely recommend 👌
Highly recommended
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