Does CMC and CD each have thier own factory, or is there one factory that produces AR’s and CMC deals with cilivilian customers and CD deals with LE and Military customers?
They have one factory with a chain link fence down the center. On one side they make ARs, on the other side they make 1911s. Colts Defence makes all the ARs.
Thanks RyanB
I could be wrong but I believe that Colt Canada is also making civilian and LE guns due to Colt being so backed up. I’ll ask a friend of mine who works there and get back.
Thanks Iraqgunz, I was curious to what Colt Canada’s current role is in the U.S. civilian and LE market.
Because of impport laws the Colt Canada complete guns aren’t supposed to be sold to civilians but I have seen them in civilian hands. All LE models that were imported for LE and diverted.
my Colt ‘‘6920’’ is marked on the lower Colt Defence, yet my shooting buddys has Colt Manurfacturing. we bought them at about the same time, they are identecal.
what gives?
When did you buy them?
I got an email from my friend at Colt. He said that he was sure that Colt Canada is making at least the LE guns. How they get into the pipeline, shipped to dealers or whatever he isn’t sure. I believe that since Colt Canada is a part of Colt Defense, they may be exempt from the normal provisions of “assault weapons” importation. That’s all I know.
Thanks for the info.
yes scottryan, i purchased about one month ago, and the same for my buddy, but he now tells me that his was sold to him as used, though it looked new to me. so that could be why? Don…
I have a 6920 marked Colt Defense on the lower with Cerro and Diemaco forgemarks on the upper. It also has two squares forged into the right side of the notched hammer. Is that a Colt hammer or somebody else’s to meet some sort of trade requirements?
I’d wondered about their relationship. The 6920 and 6520 I bought a little over a year ago have the Colt “C” on the upper and Colt Defense on the lower, but the floorplates of the magazines all say Colt Manufacturing.
Incidentally, all of the Colt ARs I’ve seen at the gunshows in the last few months have the Diemaco “D” on the upper.
Any chance we could see some pictures that show the Diemaco vs Colt manufacturing and proof marks ?
I’m a hair away from buying a new Colt 6920 and would really like it to be 100% Colt.
Thanks - northbilly
The Colt mark is just a very plain “C” above the forward assist; the Diemaco stylized “D” (only picture of it I found) will be in approximately the same place, in lieu of the “C”.
Here’s some markings on my 6920. It’s marked Colt Defense.

But, wouldn’t the large “D” shape to the right indicate that it is made by Diemaco since that is their marking?
That marking by the rear sight is the forging company (Cardinal, in this case), the one to the left of the Diemaco marking is Cerro Forging mark.
Excellent point. Those marks are left after the raw forging operation and such forgings are not under any import restrictions as they are not even considered gun parts at that stage (each raw foring weighs a couple of pounds); even completed Dimeco stripped uppers could be imported for civilian sale/rifles. The restriction is only supposed to apply to completed recievers and completed barrels for “assault rifles.”
As for barrels, it might be possible that Dimeco is importing semi-complete barrel “blanks” and Colt is finishing them in the USA - that appears to be how Sig is managing to use hammer forged barrels on their US made Sig556. I am not saying that Canadian barrels have not been “diverted” - I personally believe such things are possible - but I have no info on whether it has happened or not.
My Colt Defense rollmarked MT6400C came with a Diemaco Anchor Harvey upper receiver.