Quoted:
I have always heard good things abouth them, but for the price that they ask for them I will stick to my colts....... If/when the price comes down I will jump on one though because I have heard nothing but great things about them and DD has excellent customer service.
If you buy their M4XV model, you will have the one most comparable to a Colt 6920. The DD M4XV will have an upgraded trigger guard, a single point sling mount, a back up rear sight that will work with almost any dot sight (you have/should to take the carry handle and sight off the Colt to put a dot sight the Colt) and the DD will have a hammer forged barrel. Further, even with these upgrades the DD has and the Colt lacks, the DD M4XV should be cheaper than the Colt.
Please do not mistake what I'm saying. The Colt is certainly one of the very best rifles available to the AR consumer today, yesterday, a decade ago, and 4 decades ago. But saying the price of the DD is why you wont buy them is illogical.