MAXX Model CNC Aluminum Hopup Chamber M4A - PRO (for standard M4 AEG) Hopup Buckings Perfect for AEG builds that

Perfect for AEG builds that require longer nozzles or for correcting feeding issues caused by gearbox-to-hop-up misalignment

Please confirm compatibility with your gearbox before purchase

Capacity: 250 rounds (6mm BBs)

and AEGs using stronger springs or heavier loads

Precision fitment for stable FPS and air seal efficiency

MAXX Model CNC Aluminum Hopup Chamber M4A - PRO (for standard M4 AEG) Hopup Buckings Perfect for AEG builds thatThe MAXX Model CNC Aluminum Hopup Chamber M4A PRO is a premium hop up unit designed for standard M4 M16 AEG rifles with rear or front wiring gearbox. Engineered with high precision CNC machined aluminum, this hop up chamber ensures superior BB feeding, consistent air seal, and precise hop adjustment for stable FPS and accuracy. The M4A PRO model features an advanced adjustment system with a removable brass slider and locking mechanism, providing