JACK / F2 BV309A Bullet Valve T-Shirt With the PolarStar UGS™ (Universal

With the PolarStar UGS™ (Universal Gas Stock) you can now get the performance advantage of a HPA system without needing to be tethered to a remote air rig and still retain the likeness and function of a traditional adjustable stock

The CGS™ can be used with any of the PolarStar cylinder conversion kits such as the F2™

This is an OEM replacement in the event yours gets taken by the workbench gremlins

• UPF 50+ protection

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

JACK / F2 BV309A Bullet Valve T-Shirt With the PolarStar UGS™ (UniversalThe 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)