This new video from Airsoftjunkiez talks about the F1, the latest release from PolarStar Airsoft... "Polarstar's Brand new F1 unit and the differences between the Jack and F1. The Polarstar F1 will also adopt Offset nozzles in the future allowing for installation into Version 6 and Version 7 gearboxes."

It's now at Jag Precision, the PolarStar  Airsoft F1 HPA Engine and they are now taking orders from resellers... "The F1 is a high performance, universal HPA (High Pressure Air) drop-in cylinder designed to fit virtually any AEG gearbox. It is available as both a Centerline version, which will work with most common gearbox types, but it is also available in an Offset version to work with those unique gearboxes such the V6 and V7.

PolarStar Airsoft's answer to Wolverine Airsoft's SMP, the F1 Drop-in HPA Engine is now in production. Whilst similar to the SMP it uses a separate nozzle and poppet and can be dropped to any AEG gearbox as there is the centerline and offset versions... "Yes, that's right! The long awaited F1's are finally in production and are slated to be released in March.