Grex G-MAC.B G-MAC Valve & Quick Connect Coupler Set Era_1940-1960s + they are extremely durable

they are extremely durable

True to scale Rock Racer chassis

NOT for use in 2WD or 4WD short course trucks

They are a proud supporter of the Automobile Racing Club of America (ARCA)

Grex G-MAC.B G-MAC Valve & Quick Connect Coupler Set Era_1940-1960s + they are extremely durableGrex G MAC. B G MAC Valve & Quick Connect Coupler Set Grex Airbrush G MAC Valve and Quick Connect Coupler Set with Badger Adapter. The Grex Micro Air Control Valve (G MAC) is an essential tool for any artist or hobbyist who uses a Badger Airbrush. This G MAC valve allows for precise control of airflow, allowing you to achieve finer detail on your projects. The valve enables the user to make quick and easy adjustments to the air pressure directly from