I know their 5.56 rifles are good to go but how is their .308?

Local shop had one with a free float MLok rail. What impressed me was that the gas block was pinned and not held in place with a set screw

Relevant, and tagging:

I have one, the 18" fluted version with the POF Dictator adjustable GB and Larue MBT trigger.  I really like it, and it's a 1-1.5 MOA gun, normally, with match ammo.  I've wrung some pretty great sub MOA groups out of it with 168smks, but it will open up at times.  But hell, maybe I just need to clean it.  

My only complaint is a vain one--it has a Keymod rail, and there aren't many others that I've found to be compatible.  As far as receivers, I tried to attach a PSA Gen2 6.5 upper on it, but no dice.

Curious as to any others' experiences, too.

The test sample I had to review when they first came out highly impressed me.  Very accurate and 100% reliable.  Once I finished the article, my hunting partner asked if he could buy rather than return it to the factory.  Many times I wish I have bought it myself!