Well my Mk3 has metaphorically shit the bed after not that many rounds (maybe 300 tops). It looks like the small pin on part 30 has sheared off, so now it wont actuate the gas release valve on the magazine. Not impressed at all, wondering if I should buy a new part or if I might be better drilling out the existing broken part and expoxying in a steel pin.
I’ll probably try both and see how well it works, I don’t really have anything to lose other than screwing up an already broken part. I hope for everyone’s sake that this is an isolated incident and not indicative of a problem with the manufacture or design.
C