As well, for your turret: you may want some kind of set up for the recoil, as this gun does kick. The few times I've sucessfully shot it (it didnt go too far) the recoil was insane. I designed my own mount with springs somewhat similar to the one he has on the site. They've worked well, the few time...

To glue that thread use tfe paste, it's not glue but its pressure rated at 10 000 psi. And to respond to the guy who asked about my piston, I have no clue why it wont blow back...otherwise I would have it fixed by now. Oh, as well; making the stabilizer is one of two really long hard things to do un...

I just finished building that gun..and mine doesnt work :(..I'm still trying to make it work, but the piston wont blow back...I'm going crazy. I made the n00b mistake of choosing this as my first gun...which is probably why i can't seem to make it work. I also have seal problems, the neoprene he sug...

Yes, i drilled a couple holes in both my big washers to help equalize but it's still not working properly, it seems to be 50/50 wether it will shoot or not... and when it does shoot, it's only about 250ft, when I'd charged it to 90-100psi. And for my exhaust valve, I'm using the good ol 1" solenoid ...

I'm building my first gun, a pneumatic piston exhaust gun. It's pretty much the PAC 5 from xinventions. I've got the whole thing built but when I add air I have problems. The piston, built out of a 3" coupler sanded to fit inside a 4" chamber seals well against the barrel, and and pressurizes well. ...

Im currently building a PAC 5. It should be complete but I'm having problems with the piston, maybe, by some grace of god you guys could help me. I built it to specs from xinventions but the air isnt getting past my piston. I have no problem getting it to seal against the barrel, but when i open the...