MAXX CNC Aluminum Hopup Chamber M4P - PRO V3 paired with their inline MOSFET

paired with their inline MOSFET

gas blowback system

driving the gearbox is a high torque neodymium magnet motor

Nylon Polymer construction

The over-molded design made from DuPont™ Zytel® Polymer and

MAXX CNC Aluminum Hopup Chamber M4P - PRO V3 paired with their inline MOSFETCNC Aluminum Hopup Chamber M4P Pro (with BB Latching System) unit is precisely machined to perform accurately and consistently with HPA PolarStar Engines on standard M4 M16 platform. The Hopup Chamber M4P unit is built with an aluminum Rotary Dial Knob for fine hopup adjustments, the precision Hopup Lever and 4mm Bucking Nubs (6mm Bucking Nubs are optional) to perform best with R Hop and Standard Hop to keep the BB shooting accurately and consistently