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I am thinking about getting a shorter barreled upper on an ar 15 I acquired. I am being told that I can use my existing bcg. I do not understand how this can be. I would not swap bolts on a bolt action rifle. It must be based on how ar 15s head space
Could some one who knows alot more about ar 15s than I do weigh in on this.
Seems like with most things there is always more to learn.
Respectfully
James
Could some one who knows alot more about ar 15s than I do weigh in on this.
Seems like with most things there is always more to learn.
Respectfully
James