CNC Aluminium Hop Up Wheel For GHK M4
OptimusPrime
06 Feb 2018
FG-Airsoft developed a CNC Aluminium Hop-Up Wheel for the GHK M4 GBBR... "Enhanced CNC aluminum hopup wheel for GHK M4 is more durable than the original plastic wheel. It gives a more smooth adjustment of the hopup effect (enhanced shape) and the position and adjustment direction is indicated all around the wheel."