The DPMS 308s are a total different beast that their AR15 brother ! The 308s are great quality.
Here are a few things I have seen problems with on the DPMS AR 15s. Maybe some of the guys whos rifles these problems belonged to can chime in.
Improper or no staking on the key.
Missing gas rings.
Misaligned gas block.
Mismatched feed ramps.
Now, these are all pretty simple fixes but when I buy something I dont want to immediately start having to fix things. Sure there are DPMS rifles out there that will run fine and be accurate, these are just some of the problems Ive seem with DPMS. Not to mention their are several other options with better quality parts for the same or less money.
Again, Im not trying to rile up anyone who owns a DPMS by any means and your may be a fine product but a question was asked and I gave my experiences...