My tanfoglio mag was leaking, basically as soon as I fitted the cartridge all the gas fell out... It was leaking from the little doughnut shaped seal that sits around the "spike"
So I made a new one... Ground the top off a gas Cartridge, got a drill bit the same size as the doughnut seal, drilled that in to the end of the cartridge and used that as a stamp to cut out a little ring of rubber...
And to put the little hole in the middle, fit the rubber, take an old empty cartridge and fit it as usual and the cutter puts a little hole in it !
Job done.
Grab a beer.
Thank you.