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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
Please confirm compatibility with your gearbox before purchase
Finished with a tactical black anodized coating
Material: Hardened Stainless Steel
Precision fitment for stable FPS and air seal efficiency
MAXX Model CNC Aluminum Hopup Chamber M4A - PRO (for standard M4 AEG) Hopup Buckings Please confirm compatibility with yourThe 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