I am talking to someone from Adams arms for a potential trade with one my handguns. I'm thinking of getting an upper/lower set or upper and handguard set or something to that effect but I honestly don't know much about them. Can anyone speak to their quality control?

http://www.thetruthaboutguns.com/2014/03/foghorn/gun-review-adams-arms-tactical-evo-rifle/

http://www.m4carbine.net/showthread.php?93013-Opinions-on-Adam-Arms-Mid-length-Piston-Upper

Just a few I found Chris.

top notch i have one of their uppers

Excellent Quality throughout........................!!!!

I've never fired their stuff but I've played with it and it seemed very well made. Also, they support the shooting sports so that is always a plus in my book.

I just got a complete upper but haven't shot it yet. It came with an incorrect length hand guard (shorter), but they got me the correct one in 3 days with no questions asked so I was impressed with the service to make it right. My initial impression of the upper is that's it's well made.

Good stuff

I have an Adams Arms Piston Gas System.  Works great.  Good quality.