I have only seen one of thier AR's. A friend has it. It is not really that accurate, and it went back to them 4 times before they solved a feed issue. It would work fine for maybe 10-20 shots after each return, then it would do the same thing all over again. it would crease the case during the chambering process, this would cause the case to be oval instead of round and the case would jam in the chamber before it ever made it all the way in. once it started jamming it would do it every 2-3 rounds.
They seem to have fixed the issue now but it required 4 returns...