PoS

I should have known better then to try an Anderson product. Their quality control sucks. When I purchased this gas block, it was the only one I could find from all of my trusted suppliers.<br><br>The plastic package had a label with the correct SKU on it. The bag contained a roll pin, the block and the two mounting screws.<br><br>There is no detent system on this block, it operates via set screw on the side with a screw adjustment from the front.<br><br>I could never get this block to reliably cycle on my new .308 build. The most gas I could get out of it would, at best, send the bolt back far enough to catch on the end of an empty mag. I was only ever able to get it to send the bolt back far enough to strip an additional round once.<br><br>I decided to try it on a known good rifle (my competition rifle) just incase maybe I had some other issue. On that 5.56 rifle I could never get it to reliably strip new rounds either. It was better, functioning roughly 90% of the time. Locking on the bolt catch maybe 50%.