I guess the whole Mk. 2 thing was it for the year. I have a Mk. 2 complete upper and its bad ass, better than I imaged. Of course, one of their standard uppers would probably be just as good, for my shooting, at least. I think I'll pass on the A5ish lower. Oh well, at least BCM makes a solid product. Some companies are always coming out with new crap and never perfect anything.