Very good quality and value

I purchased this to go on top of an Anderson Lower I just completed building. I also tried it on my S&W lower. It fits and functions flawlessly on both. I took it out to the range, and it performed very well. I'm very impressed and happy with this upper. My only reason for giving it 4 stars instead of 5 is that the BCG on these uppers are not HPT or MPI. I can't help but have a little concern over that and wonder how long it will last. Because of that, I'll probably buy a higher quality, HPT and MPI tested BCG in the near future, just in case. But having said that, I still believe that this upper is an excellent value and overall quality is definitely worth the $450+ range that it is in. <br><br>Also very happy with Primary Arms. I purchased a scope from them on a different order. This upper and the scope were both shipped quickly and extremely well packed. They also responded to an email of mine in a very timely manner. They have definitely earned my business and trust.