RA Tech Adjustable FPS

RA Tech Youtube Video

This video shows how RA Tech converted their Napas system from GBBRs to AEGs. Once you replace the piston in a gearbox you can change the FPS on your age from the under 350 fps to over 450 fps with a long rod that is inserted through the barrel to change the compression in the piston. This change in FPS comes from a small compression tool like a napas that is inside the pison. The piston head on the item is also a silent piston head which lowers the noise from the gearbox when it cycles.

This is a very interesting item if any real cqb fields ever open in the South Florida area because you could easily have your aeg shooting under CQB limits then pump it up to field limits without opening the gearbox.

where can i buy this? i looked on that taiwan website and a bunch of other ones. didnt find crap

They just made the promo video so probably at least a month? Probably at least a few months to get to US retailers.