copper barrel sealing piston valve.

[tylerthetatertosser]

yes the blow gun does work extremly well, as long as you mod the internals which is very easy it should work just fine.

[rna_duelers]

Ok sweet,my copper and brass gun should be coming along very soon

[jakobite]

Hi cool what is max pressure you can go to with copper

[Ragnarok]

Hi cool what is max pressure you can go to with copper

That depends on both the bore of the copper, and the wall thickness.
There are so many variables there I can't even begin to try and answer it.

However, in small bore copper (1" or under), unless you're messing around with CO2 or other gas bottles, you aren't likely to encounter a problem.

[Sticky_Tape]

That`s a nice gun but do you think that the curve in the chamber would take from the guns preformance?