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Old January 26, 2020, 11:58 PM   #271
P Flados
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Join Date: January 8, 2017
Location: Wilmington NC
Posts: 99
An AR chamber is usually cut after the barrel extension is installed so that they can get the headspace just right.

If they cut the length of the threaded shank on your barrel too short, they could still have set up the correct headspace.

If they cut the length of the threaded shank on your barrel too short, you have a "bad barrel" with excessive bolt engagement free play. If this is your problem, the maker should be replacing your barrel at no cost to you or otherwise making things right.

Too much chamfer / rounding is still a "bad barrel" but it would be harder to make a case that they made an outright mistake.

Last edited by P Flados; January 27, 2020 at 12:06 AM.
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