So, this happened today. I went to the range after installing my HBI springs and trigger shoe. Other than that and a new safety, it's straight out of the box. In fact, I barely put lube in it. The sear had no lube. The first 30 round mag went fine. The second was okay for the first couple rounds. Then, after my next pull, it does a 3 round burst. Thinking it was a fluke, I pull the trigger again and dump another 3 round burst. I pull it apart and check the seat and see its dry and put it back together. Pull the trigger a third time and 3 round burst yet again. This is an indoor range with an RO. I got red lined after that. Any one else have these issues?