There are always exceptions.
The 3 BARs I owned would all shoot about 2-3 MOA. This is typica and realistic hunting rifle performance. You got a good one. Don't ever sell it. It shoots as well as my match grade M1A with hand loads.
I has been my experience that accuracy in rifles, particularly commercial models is overstated. Reviewers often shoot only 3 rounds, and even discount 'flyers'. When I say 1 MOA, I mean that said rifle will put 5-10 rounds into a 1.042 group center to center every time, any time any where.
I shoot at least once a week weather allowing. In my experience, there are very few 1 MOA rifles according to the above criteria. Even fewer commercial ones.