I disassembled my gun for a thorough cleaning and stock mod. Upon reassembly I now have a leak that I thought was a bad o ring in the front air tube. I replaced the o ring on the front air cylinder, but that wasn't the issue. Due to my hearing or lack of, I couldn't quite tell where it was coming from but my wife found it with in a few seconds. It is coming out of the bolt (I have confirmed this with soapy water) between the barrel and air tube which I can't really see but I think there is a smaller bolt inside it. I'm assuming it's the hammer tension and stroke adjustment but I can't seem to find it in the parts drawing. I feel a little better now that I've actually located the leak but I don't know where to go from here, and I don't want to start guessing and cause further issues or throw off the guns settings. That's where you guys come in, can Anyone With some knowledge or experience on this matter shed some light on this situation, thanks.