Definitely worth calling them, but my understanding is that no one does a 1/2-28 thread suppressor for .30. At least not that I have seen. I read an explanation of it once, but can’t remember it well enough to even paraphrase why they won’t. I am in the same situation as you. My Tikka is threaded 1/2-28 and I would want a direct thread suppressor and not have to use an adapter/brake. I want to get the weight and number of components down.
