Disclaimer here. My sole AR is a 6920 and in general I am not a huge fan of AR's. When people asked my opinion on purchasing one, I always recommended a Colt, until they were discontinued. If someone called today, I would once again recommend it. I was an infantryman for a few years and have lots of trigger time on the platform. My personal 6920 is of a much higher quality than anything I pulled from a US Army arms room in the 90's, which unfortunately is not saying much.
My prediction is that Colt will be able to sell as many 6920's in the $1,200 range they can pump out in the next 5-10 months. I am definitely not an expert on manufacturing but since Colt is set up to sell to the US and foreign militaries, that is a lot of 6920's. My issue with this whole AR buying spree is that once it has run its course a lot of good companies will go under. An AR-15 will literally last forever and is at its heart a fighting carbine. Most of the new owners will have little use for them when the current apocalypse fizzles out. This will be worse than 2 years ago when the not so lean and agile makers started to have lots of problems.
Lots and lots of upside to this though. So many new gun owners, especially in the less free states.