Ya thanks, i just needed to think about for a second, i thought that the 1/2 inch PVC would crush the dart when pushed back, but now i see how it works. Thanks Vintage.
I just have a quick qusetion about the breech on the homemades as i soon will be building a ball valve homemade. How does Unknowns breech work? Every way I imagine it i can see the dart snagging or lots of air leaking. I read something about removing the barrel. Sorry im not to perceptive, any help?