Quote:
Originally Posted by markedman
A drop of MEK (Methyl Ethyl Ketone) will bleed down the crack, Melt the plastic fuse it back together and then flash off all in about five minute. It's kinda like paint thinner or liquid model glue but a lot more aggressive.
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Actually, There is a model railroad glue called "Tenax" its essentially the same thing (its got MEK in it as one of the ingredients). Its a plastic welder. I have used it on my M3 Benelli and my P90. . . . as well as a ton of other stuff on my train set. It has not failed me yet and I've fielded both guns fairly heavily since the repairs.
If the crack reappears and or continues to grow; try drilling a relief hole at the base of the crack (where it is going, not where it started) and then re-glue the crack, and plug the hole with epoxy. . . Thats an extreme measure though.