So in the first pic above, the pro win should be sitting flush against the mech box front? No wonder you were having bad fps and other problems. thanks for the info btw.
ALso curious to know
if the pro win requires you to cut off a piece of the mag well like some other hopup systems say:
example
http://store.matrixbb.com/servlet/-s...l-Metal/Detail
edit ok I answered both my questions lol
http://picstersairsoft.blogspot.com/...6-chamber.html
q1 yes
q2 no