Very smooth excellent fitting - LANTAC Enhanced Full Auto Style .308/7.62 Bolt Carrier Group (BCG)

I was reading that you need same bcg tolerance as the chamber so this one seemed like the only dpms style one here, I needed for dpms style barrel chamber. It is very smooth and locks fine. I was contemplating the nickled boron ones out there because I like how they are slick but there’s something about this lantac one that makes it pretty much just as slick.