I've been very happy with my DPMS LR-260H AR10 platform.
I did have a cycling issue with it coming with a heavy buffer spring that DPMS doesn't know where it came from,and then tried to tell me I put it in the rifle or the dealer swapped it. My dealer gave me a new spring,and the problem was solved.
I knew going into buying it,that the trigger sucked - Installed a new trigger,and problem solved.
The rifle weighs about the same as my RRA 20" Varminter,so that was never an issue,and it shoots better than I expected for a DPMS. It loves to shoot 140 gr Sierra Gamekings,and my favorite load for it shoots just under 1/4 moa at 100 yards-.235" groups
For a $1k rifle,I've been very pleased with it's performance.