Any of you guys ever had one come loose?
Is there a mechanism to keep them from spinning? (other than Loctite)
Any other probs I might need to be aware of before I have Wes build me an SPC ...?
Please forgive my ignorance gents.
I'm pretty much a bolt gun guy ...
i have built 2 uppers with the Pri FF tube. the only things is us alittle loctite on the thread and good to go. just make sure the gas block is in the right spot first.