take the bolt out of the carrier and run just the carrier in the upper. if its not binding your just experience the gas rings doing their job.
just shooting it should wear it in over time long as its not like having to be pried out of the upper.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent