AR Sponsor
Posted: 5/25/2009 6:50:09 PM EDT
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I've searched for a while and haven't found a definitive answer to this question.
If I change m upper receiver (swapping A2 for flattop), do I have to headspace it and/or adjust it in any way, or should it be good to go once its on? Thanks for any help, -Jason |
AR Sponsor