how do you know if a part fits?
this my third time asking this same qeution
"how do you know if a par fits?"
I want to put a Dboys M4 RIS Kit
on a WETTI M4 GBBR
will that brand work on this brand?
if not witch ones will?
and how do you know?
p.s. trust me I have looked around and can not figure it out
"Major League Sniper"
Because sometimes I am tired of walking