SAT Variable Velocity Device Review
OptimusPrime
17 Feb 2018
Antre du Dingo Dingchavez review the SAT Variable Velocity Device which allows you to adjust the power of your AEG without any need for a spring change... "There's no QC spring system on your AEG? You're fed up with having to swap for a lighter spring every time you go to CQB? Here is a solution to your problem: the Variable Velocity Device. A piston and a piston head that can be adjusted on the fly!"