im at my witts end.i sprung a leak and have narrowed it down to the oring on the valve pin.I order the one the diagram listed and it was way to big so I ordered every single oring listed for that gun from orings and more still no oring.checked out guns of airszona and they are saying I need to buy the whole valve pin or valve seat.this is a real tiny oring dose any one have the size of this oring .Thanks in advance
