I started to buy the parts end of last year to do this very thing. Now I just need the 120cc plenum tube n they make the complete unit. Would like to finish what I started but this might be the way I have to go
I’m trying to find a 300 bar air tube 11 inch long threaded m28x1.5 on one end 18x1.5 on other. I want to use it as a plenum. N set up a butt stock similar to a leshi setup