All right this is the third time ive had to deal with leaking on this *****. so yes to the problem i put my co2 on and **** is leaking through the barrel and around the pin where the valve is it comes out of there. and damn it i replaced all the o rings on every spot and this **** is difficult. i dont know if i have the valve on right though. but yes any help on this **** will be greatly appreciated. god damn shutter.