“I purchased this BCG two weeks ago. Today I took it to the range in my new build. The unit worked perfectly. 40 break-in rounds went down range, 20 Winchester power point, and 20 Lake city M80. I had no issues with the BCG and it looked like new still at the end of the session. I can say it wasn't stiff at all like other BCG I have purchased in the past. It worked smoothly in the upper with or without lube. When I'm firing I run the bolt with lots of oil and that had no bad effect on the operation. I have an adjustable gas block on this new build and I had it closed today because I was cleaning the barrel after each round. As a result I had to manually cycle the bolt after each shot. Some rounds were harder to eject than others but the extractor had a good grip on each case when the bolt was pulled back. I will try another 50 rounds next week and will be using the gas system. If there are problems I'll update.”