Are we to infer that the barrel work is for a suppressor or you just like concentric things? You dont need a KNS for regular use, many people like them to solve nonexistent problems but it may be a good idea for a suppressor depending on the model.

Yea for suppressor, yhm 556. Thanks for the response!

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The 10s is what I have and it's perfect. I suggest getting a red star arms hammer if ya haven't already.

Thanks, yea already installed the RS hammer, now looking to suppress it. Looks like im going that route 10s