yeah, but i don't know why you would want to... just from the looks of it, i'd say:
DPMS gas block
dpms fluted barrel
dunno who makes the forearm, but they're cheap and very commonly seen at gun shows.
regular A2 stock
is that the knights trigger guard or the RRA one? i can't recall
i can't tell from the pic if that's white or silver/satin or what kind of paint, but my guess is you could easily duracoat those parts to achieve that look