MAXX CNC Aluminum Hopup Chamber M4P - PRO Grenades System programming button

System programming button

x1 G&G GTP 9 MS GBB Pistol - Black

You still get great trigger response

the user's head safety

Color : Black & DE

MAXX CNC Aluminum Hopup Chamber M4P - PRO Grenades System programming buttonCNC 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