IME, Barnes rifles are good to go.
***NOTE: I'm a regular dude. Not a LEO and not military. Andrew Barnes (owner of BPM) has become a friend of mine over the past couple of years. I'm not sponsored by BPM and have nothing to gain by posting this. FWIW.***
I have a BPM rifle that I've owned for just under two years. I bought my first one after meeting Andrew Barnes at a local match here in NC and taking a two hour tour of his facility in Apex, NC. I am currently in the process of buying a second BPM rifle.
First, I don't feel any need to have members here (or anywhere else) validate my choice. My rifle has been extremely accurate and reliable and I could not be more satisfied with it. I have approximately 5000-5500 rounds through my BPM (not a lot by standards here on m4c, I know). The malfunctions that I've had were related to (1) worn out magazines, (2) eroded gas rings (at ~4000 rounds) and (3) a broken bolt lug at ~4700. I had an LMT when I bought my BPM, and after running the Barnes for a while, sold the LMT and have not regretted it since (the LMT was a fantastic rifle; just trying to communicate that I didn't feel like I was giving anything up going with the Barnes). I don't shoot from a bench, but my Barnes rifle has been far more accurate than I am out to 300 yards supported on barricades with occasional barricaded shots out to and just beyond 400.
Second, and most importantly, I would like to set the record straight with respect to some earlier statement that BPM has "lied" about certain SOF dudes running these guns. I know for a fact (because I have shot with these guys myself) that more than a few SOF guys here in NC choose these rifles as their personal, privately owned guns and at least one rifle has been selected as a work gun and fielded down-range. Andrew is one of the most straight-up guys I've ever met. He doesn't lie. Ever. I can guarantee you that his integrity as a man means more to him that selling rifles.
Third, the "SOF" connection means very little to me. What does matter to me are the years of machining experience and quality control that go into these guns. The threshold for what leaves that shop is EXTREMELY high, because I know that Andrew views each of these carbines as a reflection on him and on his business.
Finally, the fact that the OP's gun was out of spec is surprising to me. I know that BPM would find that completely unacceptable and would have gone above and beyond to make it right. IME, these guns are well-built, soft-shooting and accurate.
My name is Steve Sellers. If anyone has questions about my experience with BPM, just drop me a PM.