Trracer repair help

[morpheus]

Needing some help with tracking down a leak. I have 2 PMI Trracers that have leaks down the barrel. I think I have narrowed down the leak to the ASA. I have replaced the impulse seal as they call it but I am having a hard time finding the correct size for the oring that sits in there. Does Anyone have any thoughts or know what the correct size might be for the oring?

[BigRed]

If you’re leak is down the barrel, then it’s probably the cup seal.

[morpheus]

That is what I thought as well, I replaced the whole cup seal assembly with a Kingman Hammer cup seal. That didn't seems to fully fix the issue. I am thinking the other oring is bad as well or I don't have that cup seal seated correctly.

[BigRed]

Gotta ask, do you have the valve spring in place holding the cup seal closed?