Maxx Model CNC Aluminum Hopup Chamber for Standard M4 AEG
[74165 / MX-HOP020MG]
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Maxx Model CNC Aluminum Hopup Chamber for Standard M4 AEG
Precision CNC Machined Performance
The Maxx Model CNC Aluminum Hopup Chamber is precision machined from solid 6061 aircraft grade aluminum to deliver superior durability and exceptionally tight tolerances. Designed for standard M4 AEG platforms using gas blowback inner barrels with a C Clip cut, this chamber provides a rigid and stable foundation for consistent hop-up performance in both AEG and HPA builds.
Advanced Adjustment and Compatibility
Featuring a precision rotary dial knob, this hop-up chamber allows fine and repeatable adjustments for exact trajectory tuning. The re-engineered hop-up lever system is optimized for R-Hop, Flat Hop, and Standard Hop configurations. It accepts nozzle lengths from 21.00mm to 21.25mm and is fully compatible with most aftermarket soft and hard buckings without FPS loss or BB drop.
Enhanced Air Seal and BB Control
A CNC Delrin locking C Clip secures the inner barrel firmly without wobble or twist, while a triple compression spring system ensures centered alignment and a consistent air seal. The interchangeable inlet adaptor system allows precise nozzle alignment in HPA and AEG setups, including PolarStar engine builds on M4 and M16 platforms. An integrated BB latching system prevents BB drop after magazine removal, and the manually actuated latch arm provides controlled chamber release when needed.
Features
- CNC machined from solid 6061 aircraft aluminum
- Designed for standard M4 AEG platforms with C Clip cut barrels
- Precision rotary dial hop-up adjustment
- Optimized for R-Hop, Flat Hop, and Standard Hop setups
- Accepts nozzle lengths from 21.00mm to 21.25mm
- Compatible with most aftermarket buckings
- CNC Delrin locking C Clip prevents barrel movement
- Triple compression spring system for consistent air seal
- Interchangeable inlet adaptor system for AEG and HPA builds
- Removable CNC brass side wings for smooth outer barrel fitment
- Integrated BB Latching System prevents BB drop
- Manually actuated latch arm for controlled BB release
- Compatible with HPA PolarStar engines on M4/M16 platforms
- Specifications
- Manufacturer: Maxx Model

















