What is the consensus about using the same 9mm bolt in multiple uppers? Are the same caveats as with a 5.56 bolt apply, or there are no headspace issues, since the bolt is not locking?
Thanks.
What is the consensus about using the same 9mm bolt in multiple uppers? Are the same caveats as with a 5.56 bolt apply, or there are no headspace issues, since the bolt is not locking?
Thanks.
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