I was going to build my AR10,but after looking around at what it would end up costing,I just decided to get a DPMS LR-260H.
I didn't want another 308 caliber rifle,I have too many of them,and the 260 Remington has better ballistics anyway.
The factory trigger is junk,so I sent it off to Bill Springfield and had him do a 3lb trigger job on it.It's a great trigger now.I installed an ACE buttstock,and a Hogue grip on it,and put a spare Sightron SII 4-16x42 scope on it for now.
I'll be putting a Pulsar N550 digital nightvision scope on it,soon.