SRS Piston Cup with air brake

Very easy to fit. Air seal got better the more it was used. Nice and quiet. Thanks for the usual A1 service SS :-)

Works well with the shortest airbrake, no loss of fps whatsoever to be honest unless you go to a bigger airbrake

Seriously silenced my srs. Only reason it’s not 4* is because the decrease in FPS. Although not big it does decrease it

Easy to install, makes a difference in sound. The material used could be a bit softer to give a good airseal. Overall worth the money if You want to have something before the "mousefart" ;)