I suppose that the base model is the Recce at $1700.
My Recce is a few years old and they've changed the lineup. I ordered it with the VIS. It's been a superb firearm. It's been pushed hard at several 2000-round carbine courses (Jeff Gonzales, Kyle Lamb) without a hiccup.
I also use this 11.5 inch SBR built on a Noveske matched upper/lower and using a BCM BFH barrel. Very accurate, but I had trouble with it (FTF) at a carbine course this past June. I think I fixed it by replacing a defective gas tube. Only 500 rounds since I replaced it, but so far so good.