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AR15.COM
7/9/2016 5:00:44 PM EDT
A little over a year ago I purchased a complete PSA 16" CHF midlength upper. It's been great and I'm now thinking about putting a direct thread silencer on it.

What I would like to know is whether the barrel threading is likely to be concentric.
7/9/2016 9:32:23 PM EDT
[#1]
You should be fine. Just check it before you put rounds down range.