I have a RR and a DD, and to be honest, I don't really think that the DD is any better. The upper and lower fit a little tighter on the DD and it looks a little cooler but the trigger and the muzzle brake on the RR is alot better. Both will shoot under an inch at 100 yards with good factory ammo and even better with my handloads. Both are free floated, chrome lined, feed any ammo, and have proven themselves worthy of trusting my life to if needed. Don't make the mistake of letting a few people touting a certain brand influence you too much. I have several friends that are in LE that trust their lives to the "oh so unreliable" bushmaster brand and the so called middle of the pack RR and S&W m&p on a daily basis. Do yourself a favor and get raw info and not just a bunch of opinions (no offence). I don't know where where you live but I know several stores in Ga that have DD, Bravo Co, LMT, Colt, and Spikes Tactical on the shelves as well as RR, Bushmaster, S&W, Armalite, and DPMS. I agree, you would be very pleased with the RR. On the other hand, you would be very pleased with the DD or Bravo Co. Heck, check out Wilson Combat or Les Baer........