I SBR'd a DPMS lower years ago before I knew better. Unfortunately it's got a walking FCG pin problem. Obviously my next one will be a quality unit. I'm considering my 6920 lower, or my BCM. Hell, since I'll have it forever, I might as well go all out and get another KAC lower or even an HK MR556.

Then there's the question, should it be ambi or USGI stock configuration?

How do you guys decide on a lower? I'm just curious.