Which would you choose? Colt 6920 w/LaRue or DD carbine rail or POF Gen II lower, RRA LPK, MagPul CTR, Noveske N4 Light Carbine VIS Basic upper Price is not an issue for this. Optics and anything else added would be the same for both. Everything is brand new. I was pretty set on the POF set up but have a chance to get a new Colt 6920 for $1260 shipped to my FFL. Has me thinking.