I ordered a Stag arms upper about a month and a half ago and just got around to cleaning it out to go shooting tomorrow. Discovered inside that the rifling is mangled. It looks like an old .303 that had a million rounds though it. This was supposed to be a brand new upper. Tomorrow morning i am going to be giving them a call. Really goddam disappointed. This will put me back another two months.

Here is a pic. This is from the muzzle end.