PolarStar JACK™ HPA Conversion Kit Configuration:V2, M4/M16 No trigger release required before

No trigger release required before the next round chambers

Includes the latest state of the art Amped Line

The HK Army Proline Jersey has been fully re-developed to deliver peak comfort and breathability

old-school feel with none of the performance trade-offs

Replacement Foam Kit for RMX Goggle System

PolarStar JACK™ HPA Conversion Kit Configuration:V2, M4/M16 No trigger release required beforeCode name "Simple Jack." The JACK was designed to answer demand for an affordable, high performance HPA conversion for AEGs a drop in cylinder replacement universally compatible with a wide range of gearbox versions that have center line nozzles. PolarStar Filter Fitting included. The JACK has only one moving part: the nozzle, which acts as its own poppet valve. Like the Fusion Engine and F2, the nozzle is only piloted by the solenoid to open airflow