I recently bought a 6.8 upper from Iron Works Tactical, they are active on the 6.8 forums and a sponsor over at Predatormasters. I had priced barrels, components etc at various places and was going to build it myself, but they had everything I wanted at a fair price assembled.

16" scout profile ARP barrel, Aero upper receiver, ARP superbolt, 13" troy alpha rail. I put a VXR 3-9x40 on it, and it weighs something like 8.25 lb. Plenty handy for me.

It shoots 120SST factory hornady around 2450 fps according to my chrony, I set it at about 2" high at 100 for 200yd zero. I have only shot it to sight in, went hunting once with it on Thanksgiving. I shot a 200lb sow at 50yds just behind the shoulder. Punched ribcage and dropped her where she stood, no exit. I like it so far...