Reply To: Looking for some advice –
I bought a marauder 25, shot great and no leaks. Lent it to a buddy and he kept it so long and shot it so much that he bought me a new one. The new one shot great but leaked air, about 100 psi per night. I did not want to pay for return shipping so I ordered orings to fix it myself. Turns out that it was an oring on the gauge mount that had partially rolled over on itself while it was being slid into the air tube. After replacing the orings I have not had any air leak. It was a learning experience and now I know much more about oring sizes and materials than I ever wanted to know.
My buddy later bought his girlfriend a marauder 25 and that one had no leaks. I guess sometimes a bad one gets past QC.