dont believe everything you here on the internet,
one, judging by your argument you would believe the ar10 has the same relibility as a tech-9, if that was so, they would not be in buisness, and certainly not have been a competor in the ARMY SASS/m110 trials.
and two, armalite ar10s are closer to 1250 than 1400,
dpms is a great gun, but no better than any other 308 AR, all in all i have had two ar10s and neither has been any less relible than any of my ar15's