Pay in 4 interest-free payments of $561.25 Learn more
Ships within 48 hours · Estimated delivery Aug 25 - Aug 30
Smooth gear meshing and consistent timing
Full CNC aluminum body for durability and precision fit
Origin: China
excellent wear resistance
aggressive play
MAXX Model CNC Aluminum Hopup Chamber M4A - PRO (for standard M4 AEG) Receiver Kit Smooth gear meshing and consistentThe 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
