Take out the on/off and oil it up really good inside and out. Oil the whole gun. this fixed my mag issues manny times. These things love oil.
Not meaning to rub salt in your wounds but was the valve leaking? First basic rule of AutoMag ownership is "don't fix it til it's broke".
For just the body and rail? Already turned down this amount for the full marker.
And I received two very interesting trade offers last night.