This nozzle is for the PolarStar Fusion Engine. This nozzle allows you to regulate your maximum FPS output based on your barrel.

The High Flow Nozzle is pictured above assembled into a Fusion Engine.

The following is a diagram showing the approximate FPS output of the green nozzle corresponding to each of the following barrel lengths with .20g BBs at max input pressure 120PSI:
275mm will yield ~313 FPS
375mm will yield ~325 FPS
509mm will yield ~363 FPS

We will be offering international shipping for all PolarStar products.
Please email us at sales@ampedairsoft.com to discuss further shipping details.