I've cleaned all the gasket crap off, and the corrosion as best I could, and it's now torqued down. i don't want it killing my piston either!

Once we've decided where I should send my barrel to, and I've had it replated, I'll swap them over and send yours back. Unless I sieze it first, in which case I'll fix it then send it back!

Incidentally, What do the L2, L3 and H3 marks on the side of them signify?
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MC21SP Plaything
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