Yes, Colt 6920 is a nice rifle...When I was looking at purchasing my first AR, I wanted a 6920 but they were close to $1,500 at the time and couldn't afford it. That's when I found a Del-Ton for $800....
Not to say that I regret purchasing the DTI over the Colt....My Del-Ton has served me extremely well, over 1K rounds through her with no issues yet. Colt has been in the AR business much longer than DTI, they are the company that took over and improved on the AR-15 when Armalite sold the rights to Colt back in 1959....So Colt obviously manufactures a good rifle...or I should say they set the standards...