This is just for the 223 caliber usage, correct? They don't broadly sell a 30 cal in 1/2x28 as they do not support that small thread usage for the larger calibers or magnums.
When I had asked TBAC about the 1/2x28 30 cal on a 7mm mag Fierce Fury TBAC said it would not be warranteed but that I could send my rifle in and they would re-thread and install a customer CB brake on it. I recall price being reasonable but can't recall details.
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