Running a Mystic x on my akv. Using the lo pro fixed adapter. Not using a locknut since no problem with alignment.
Haven’t had any problems with direct thread backing off on the V or when running same suppressor on my ar’s.
Trick seems to be screw it down hand tight, fire off a few rounds to heat up the can, then give it another hand tighten with a glove when hot. No problems with loosening up after doing so.
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