Out of spec - ODIN Works AR-15 9mm Billet Upper Receiver

Paired this with an Odin 16.1" 9mm barrel and barrel to receiver fit is the sloppiest I have ever felt. Receiver is .004" over max spec and barrel is .0009" under min. Odin says it's within their spec and will be fine, just put some loctite or rockset on barrel. They have been very good at responding to emails and said they will take care of it if there are issues. Will see how it shoots after final assembly. Would hope for better fit given both were produced by same company.