Re: AR's and chrome lined barrels.
swap a barrel from your buddy or brother-in-law. If your doing all the work it will cost you nothing. now you have the bvest of both worlds
(my buddy has had no issues with his non chromed barrel, and he is always using his slide fire, but he never keeps a barrel long enough to see a difference, he is always swapping parts out, or should I say, I am always doing it for him. )
You just needed to see it from a different perspective. LOL