Larue rail, stupid question

My Larue 9" rail is about 1/16" off center at the muzzle end of the barrel, how “true” are these to the receiver generally? I knocked my sling swivel out (was really easy, and done on carpet with 4 wacks of a rubber mallet and a punch), I want to make sure I didn’t bend the rail.
But I also remember it seeming a bit off when I got the upper, but I didn’t actually measure it until last night.

Any thoughts?