Stay away from that weenie .223 though.....LOL!
I prefer the 300AAC blackout. Works well on Kentucky whitetail super and subsonic. Built on a palmetto state upper and lower with guts from midway. Simple as pie with no need for special tools but they do make life easier.
Since then i have read that folks are having good luck with a subonic 6.8 spc with a 1:7 twist barrel. Military is suppose to be going to a non-spc 6.8. I’d wait on any new ar’s until we see what they got.
Not a huge fan of the 223 but it’ll do in a pinch.
The .350 Legend from Winchester is right around the corner.