Yes I contacted Atlantic before I bought it and they said it is contract built by lancaster. Its an egyptian parts kit that lancaster assembles for Atlantic on an NDS 3 receiver. So most likely they aren't even the ones that install the FSB, but I'm not sure about that part. It does have a lifetime warranty through Lancaster as well.
I did email lancaster about the cant but haven't heard back yet. I think I will give them a call tomorrow to see if they are willing to fix it. Its not majorly canted so its hard to get a good picture of it.
Other than that I love the rifle, good fit and finish and looks very nice