I have a qb78 that I have added the bulk fill cap to and find that I am only getting about 20 hard shots per fill. I'm sure I'm getting a good fill as the gun is cool and the tank is left outside in the warm air. The gun is modded and 20 shots is about what I would expect.
I want to add an extension tube and I know that Mac1 makes one but is there anyone else who does as well? I don't see where Mac1 offers a tube that will have qb threads on both ends. As I already have the qb bulk fitting, I don't want to have to buy another fitting and be left with the qb fitting that I can't use.
How many different sources are there for qb co2 bulk extension tubes?
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