Maxx Model CNC Hop-up Chamber M4E for M4 (AEG bucking) – 2026 version

The M4E CNC aluminum hop-up chamber is designed for use with Tokyo Marui / VFC M4 AEG replicas.

Here are some of the key innovations:

• 360° Round Nub – Replacing the traditional rectangular nub with a round nub creates a more consistent contact surface with the BB, improving stability and consistency.
• Modular HPA Inlet – The rear inlet can be easily removed and installed, allowing seamless integration with our 2026 Maxx HPA systems.
• Aluminum C-Clip + Collet Centering – The inner barrel is secured using an aluminum C-clip combined with a collet-style centering system for extremely precise barrel alignment and maximum stability.

This is the first time, worldwide, that a collet centering principle has been applied to an M4 Hop-Up.