Hop-Up Rubber Sleeves (Bucking)
I modified my SIG SG 552 which has the GWS SIG SG 556-Sniper Conversion Kit and 650mm inner barrel. It shoots about 440-450 FPS on 0.25g BB's.
I have a Firefly Hop-Up Rubber Sleeve (Hard Type) and a Prometheus Hop-Up Rubber Sleeve (Hard Type). The Prometheus feels stiffer than the Firefly. Which one would be better to use on my setup?
|