fmf pipe?

yes they do
if ur wondering cause the flange doesn't have a place to hook a spring to, some of them do and others don't idk y but thats the way it is
u just have to hook it to the bar that runs down the front of the jug
 
are you kidding??i just dropped 500$ on my blaster yesterday the least they could do is give me the f*cking springs. oh well