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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2
Capacity: 250 rounds (6mm BBs)
and AEGs using stronger springs or heavier loads
Recommended for advanced users or professional installation
Finished with a tactical black anodized coating
MAXX Model CNC Aluminum Hopup Chamber M4A - PRO (for standard M4 AEG) Hopup Buckings Capacity: 250 rounds (6mm BBs)The 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
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