The Lower is a POF Gen II. It is billet machined lower that is a very close copy of the HK 416 lower. They cost twice as much as a RRA or DPMS but I was looking for the ultimate upper lower combo so I spent a little more money. The upper is a VLTOR MUR-1A.
Looks like the POF mil-spec lower.
The POF Gen II lower has an integrated over sized trigger guard while the POF Gen III lower has ambi bolt release and integrated over sized trigger guard.
Looks great non-the-less.