

MAXX CNC Aluminum Hopup Chamber M4A / M4P PRO for M4 Airsoft Rifle
The MAXX CNC Aluminum Hopup Chamber M4A Pro (with BB Latching System) unit is precisely machined to perform accurately and consistently on Tokyo Marui (include G&G, KRYTAC, except KWA) Standard M4/M16 AEG series. These upgraded hopup units are perfect for your Tokyo Marui Spec M4 AEG!
MAXX's M4A hopup unit is built with an aluminum rotary dial knob for fine hopup adjustments. Precision-engineered hopup lever ensures perfect top down pressure which allows your gun to properly seat and apply hop to the BB. This is why the MAXX hopup units are some of the best on the market; shooting accurately and consistently with every single shot.
Overall Length: 51.65mm
Overall Height: 37.75mm
Inlet Adaptor Outer Diameter: 11mm
Hub Outer Diameter: 12mm
Hub Inner Diameter: 8mm
Feeder Outer Diameter: 8.85mm
Feeder Length: 6mm
Material: Aluminum 6061
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FAQs
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Phantom™ vs Other Mock-Suppressors
What makes our Phantom™ Carbon Fiber Suppressors special is two fold.
- We hand-selected the best materials such as genuine twill 3K carbon fiber and 7075 billet aluminum to give you the lightest, strongest, and best performing suppressor possible.
- Our engineers packed as many features into the new Gen 6 Phantom™ as possible whereas other mock suppressors are just cheap, flimsy, and easy to scratch aluminum tubes that don't even include foam!
You can also count on our support team to help you out with any issue you may ever run into, even years down the line - something our competitors would never offer.
Pre-Build vs Build it Yourself
We recommend pre-builds to anyone who wants a competition ready pistol right out of the box without worrying about part compatibility, incorrect installation, or any fitment/damage that occurs during the build process.
We recommend building for those of you who prefer a "upgrade as you go" approach, or those who want to tinker and learn the platform. Building is a blast and we suggest everyone tries it at some point!
Can I Customize a Pre-Build?
Absolutely! If you want to replace any part, just add the aftermarket replacement to the order and leave a note saying you want it added to the pre-build before it ships! If you have more complex requests, please just shoot us an email with your idea!
The Build I Want is Out of Stock!
If the pre-build you are interested in is out of stock, please shoot us an email and we'll let you know if we have the proper components to re-build that particular custom. Often times, we don't have the exact same color for one of the many parts and a simple substitute means the build is able to be completed again!
Are MNA Upgrades Drop-In?
Our upgrades are properly spec'd such that they work with not only the base platform such as Tokyo Marui Hi-Capa, but also most popular upgrade brands for the platform like Airsoft Masterpiece/EDGE, NexxSpeed, Maple Leaf, and Dr.Black.
We do dozens of test fitments and torture tests to ensure all of our parts are nothing short of the best!
MNA vs Other Hi-Capa Builders
Our pre-builds are ranked amongst the best because we actually care. We are a small dedicated team of long-time players who will assemble your build as if it were our own personal build. We love what we do and want you to love your custom as much as we do!