BCA barrel is choking at the throat

[FLshooter]

Listen to the two guys who posted above me.I’ve been there, done that. BCA barrels are a waste of ammo.It will never get you where you want to be. What I did was, put BCA upper aside and order a custom barrel from Craddock precision. I was able to sell my bca barrel to a sucker for $50. Believe me, when you put that new barrel on your upper,you will never look back.