The Maxx CNC Aluminum Hopup Chamber M4T One (for TM MWS M4) is a premium hop-up unit for players building a more consistent Tokyo Marui MWS M4 GBBR. Precisely CNC machined from 6061 aluminium, it is designed for a tight, secure fit and dependable performance with the stock adjuster unit, making it a practical upgrade for anyone chasing better accuracy from their MWS platform.
In use, the key advantage is stability. The chamber is built to work with most GBB hop rubbers while helping maintain a reliable seal, which can reduce BB drop-off and support more consistent FPS. Maxx also includes a locking C-clip and taper locking sleeve to hold the inner barrel firmly in place, cutting down on wobble and unwanted movement that can affect grouping.
Setup and maintenance are kept straightforward thanks to the removable steel pivot pin, and the included nubs give you options to fine-tune hop contact to suit your preferred BB weight and barrel setup. For experienced users working on a Tokyo Marui MWS or compatible EMG / Double Eagle Noveske N4 Gen3 MWS-style rifle, this is a well-made internal upgrade that focuses on real skirmish benefits rather than cosmetic changes.
If you are refreshing your rifle’s internals, it also makes sense to look at compatible GBB buckings and inner barrels for a properly matched build. Add the Maxx M4T One to your MWS project and tighten up your rifle’s consistency where it counts.

















