B4Dan Report post Posted July 17, 2015 Could you give a brief explanation of lapping on an AR. Thanks Share this post Link to post Share on other sites
PRDATR Report post Posted July 17, 2015 Could you give a brief explanation of lapping on an AR. Thanks http://www.ar15.com/forums/t_3_4/524898_Questions_about_lapping_upper_receiver_.html Share this post Link to post Share on other sites
Mike S Report post Posted July 19, 2015 What does the lapping do? Just curious as on ARs the bolt locks into the barrel extension and the upper is just along for the ride... Share this post Link to post Share on other sites
cactusjack Report post Posted July 19, 2015 It sells one more service/tool to us suckers. Share this post Link to post Share on other sites
Big Browns Report post Posted July 20, 2015 I'm sure someone can explain it better than I can. From what I understand it basically insures the face of the upper is trued with the barrel. If you do a Google search you will find a lot of info on it. It's just another thing you can do to help ensure accuracy. Share this post Link to post Share on other sites
Mike S Report post Posted July 21, 2015 Thanks, I had never heard of this back in my service rifle shooting days. Share this post Link to post Share on other sites
