JACK / F2 BV309A Bullet Valve T-Shirt Another great feature to this

Another great feature to this FCU is its integral Motor Control Unit (MCU) which allows it to run a box magazine through the MCU port

The regulator is just the regulator part of the air rig and requires an air line and QD or Filter fitting to be purchased separately if not already in your possession

but in a modular configuration that has been designed to fit all Milspec stocks as well as most AEG stocks

that number is universal across all engines* that use the numbered nozzle system

If a more restrictive nozzle is needed to keep the muzzle velocity within field limits

JACK / F2 BV309A Bullet Valve T-Shirt Another great feature to thisThe BV309A Bullet Valve is the solenoid used in all current production F2 and JACK HPA systems and it is backwards compatible with all F2 and JACK systems previously made. Power lead is included with the valve and also available separately. (Power Lead part # 10000479)