My new Avenger is a tack driver and I could not be happier with it, but it does appear to be slowly leaking. I'm losing about 400PSI per night. I have read posts saying a good shooting session can sometimes clear a minute obstruction that could be causing air loss so I will try that first. I have read many more posts that suggest this is and has been a problem with a number of air rifles over time due to inadequate material in their poppets and an replacement is the fix. I haven't been able to contact the business that sold me the gun to see what they want to do because of the holiday. In any event, I'm thinking replacing it will be prudent for long time usage without problems. Does anyone have them for purchase? Where can I get one? What is the cost?