Are these any good?

They are offering an almost complete VIS upper (no BCG or CH) with a hammer forged 14.5" lightweight middy barrel for $875.

I was looking at the exact same barrel from Daniel Defense, but if I were to pay retail for a DD barrel and the same VIS upper I'd be dishing out around $1000.

So, if you include the cost of a low-pro gas block, gas tube, birdcage (which I wouldn't use anyway) plus assembly - this looks like a deal that is too good to be true:

http://www.centurionarms.com/index.p...art&Itemid=134

Granted you still need some additional components to finish it but I'm not too keen on buying uppers from companies that I don't know anything about, especially if I don't know where the barrel came from.