Yep, finished putting mine together a little over a year ago. I'm not gonna be long on details right now- just got in from 8 hours in the plow truck.........
I like mine. Scary part is, so does my wife. ;D
Future plans for it include a better trigger- the stock trigger from the parts kit is a half-step above horrid. I've thought about a cut and crown on the barrel to reduce it down to 18", but I hate to mess with it since I can get 3/4" groups with handloads! I definitely need a better optic than the cheapo Bushnell that's on it now.
DPMS lower CMMG (I think!) lower parts kit A2 buttstock Bushmaster 20" rifle upper