Need some help with an Air Arms 510. I just got in a nice stock from Custom Stocks in England and when I was installing it I noticed it was a little tight fit but it looked OK. Well I guess it was not because when I tightened it down it developed a leak where the air gage mount attaches to the firing valve body. Is there anything I should know before I start disassembly. I know I need to trim the stock to allow clearance just not sure about the rest. Any help would be appreciated. Thanks. Mike
