Airsoft Canada - View Single Post - Need help find a hop up rubber for Prometheus TB Barrel

kyros · September 8th, 2014, 13:06

I'm using .25 and sometimes .28s
I'm shooting at around 400fps...but I can quickly change the spring position for lower fps to about 350fps for indoor

September 8th, 2014, 13:06	#3
kyros Trader rating Join Date: May 2009 Location: Antartica	I'm using .25 and sometimes .28s I'm shooting at around 400fps...but I can quickly change the spring position for lower fps to about 350fps for indoor