[talon]

Recently purchased some parts from another member, which included a leaky mag. Basically, once filled, it would hiss from where you put the nozzle to fill it. This is a really quick fix, and probably pretty lucky, but all I did was put a bit of Green Gas in it (not propane, but actual Green Gas), and let it sit a day or so. Filled it later at a game, no more leaks.

So next time you have a leaky mag, before you attempt to dismantle the whole damn thing, put a bit of Green Gas, and leave it for a while.