The Maxx Model CNC aluminum hop-up chamber, M4P - PRO, is designed and manufactured to work precisely and with extreme accuracy in M4/M16 style airsoft guns equipped with PolarStar pneumatic systems.
The hop-up adjustment uses a rotary-style mechanism, controlled by a large numbered adjustment ring. The rotary hop-up design allows for highly precise and stable hop-up settings. The hop-up unit comes with different pressure arms, making it possible to optimize the unit for use with standard hop-up rubbers or R-hop patches.
The HM4P unit is engineered to fit seamlessly with the nozzle length of the PolarStar HPA M4 unit. The M4P unit features an interchangeable nozzle support adapter that ensures the hop-up unit remains aligned with both the barrel and the HPA unit.
The M4P unit is equipped with an interchangeable nozzle-centering adapter, ensuring the hop-up unit is positioned exactly in line with the nozzle.
The sides of the hop-up unit feature removable brass side wings that slide smoothly into the grooves of the outer barrel.
