Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
9/24/2024 9:23:43 PM EDT
I put my colt monolithic upper for sale the other day and a member asked for some detailed pictures.  After sending them to him, he says the barrel might not be Colt.  I purchased it new, as a complete upper, so I thought this was a little strange.

I did a little research and now I am more confused. Can someone point me to where I might find the correct information?

There is a C on the upper and the bcg. See picture for barrel markings.

Thanks for any help.

Attached File
Don't be the flame, don't be the fuel added to the flame....Be the spark
9/24/2024 9:31:59 PM EDT
[#1]
13629 is the Colt cage code. I think it’s very unlikely someone would have swapped the barrel with another barrel with a fake Cold cage code engraving and the proprietary barrel extension required for the monolithic upper… seems like a lot of trouble for no reason.

not to mention the barrel nut wrench for those is unobtanium

looks legit to me
9/24/2024 10:02:04 PM EDT
[#2]
Was he expecting a "C" engraving on the barrel?  

As the poster above me said 13629 is Colt's cage code, that's a Colt barrel.
9/24/2024 10:08:43 PM EDT
[Last Edit: awdsuperstar][Edited] [#3]
He said he thought it was a roscoe barrel. He did say he thought it should have a C.  I'm not sure if he was uninformed, mistaken, or just trying to lower the price. I bought it new as a Complete Colt upper so I was pissed.  

Thanks for the info guys, I appreciate it!!
Don't be the flame, don't be the fuel added to the flame....Be the spark
9/24/2024 10:26:09 PM EDT
[#4]
Rosco OEM'd some barrels for Colt, that might be one of theirs made for Colt.

It doesn't diminish the value of the upper at all, IMO - they are proprietary barrels to Colt's upper, so they're made for Colt to Colt's spec.
9/25/2024 12:51:33 AM EDT
[#5]
Quote History
Originally Posted By Jeepsnguns81:
Was he expecting a "C" engraving on the barrel?  

As the poster above me said 13629 is Colt's cage code, that's a Colt barrel.
View Quote


The latest and greatest gun myth is that cage code marked barrels = outsourced.

That’s a BS.

I have a GM barrel that’s C marked so….

Colt transitioned to cage code because of US Govt requirements. That’s it.
9/25/2024 6:52:46 AM EDT
[Last Edit: TGWLDR][Edited] [#6]
It's a Colt barrel.

Possibly subbed by Rosco, but they are not the only subcontractor.

Man, people get so fucking twisted over Colt these days with all of the speculation and parroting of half truths based off of no clue.

ETA: Check the barrel marking at the chamber area (usually bottom dead center on exterior), if it's stamped with an "R" it's Rosco subbed. Rosco is an OEM for several.
Can't never could 'til try came along.

"All welchers should be removed from the EE".-Aimless

R.I.P. to the EE
9/25/2024 7:21:08 AM EDT
[#7]
Oh btw monolithic uppers use a proprietary barrel… and Colt is the only mfg of those barrels. Doesn’t matter if the barrel blanks are supplied by Rosco, GM, etc
9/25/2024 10:21:21 AM EDT
[#8]
From what I have seen, there has't been C marked new barrels in the last 8ish years.  Exception seems to be on 20" barrels as some of the new uppers I have seen still are C MP marked...but this could also just be anecdotal and I haven't paid that much attention recently.

Good luck with that buyer.....he's making it obvious that he is not knowledgable in this regard.



9/25/2024 10:29:13 AM EDT
[#9]
Thanks again for all the info. I bought it as a complete colt upper from a dealer. It never crossed my mind that it would be anything other than colt, but I started second guessing myself.

Ask and Arf provides!!
Don't be the flame, don't be the fuel added to the flame....Be the spark
9/28/2024 7:33:24 PM EDT
[#10]
Quote History
Originally Posted By TGWLDR:
It's a Colt barrel.

Possibly subbed by Rosco, but they are not the only subcontractor.

Man, people get so fucking twisted over Colt these days with all of the speculation and parroting of half truths based off of no clue.

ETA: Check the barrel marking at the chamber area (usually bottom dead center on exterior), if it's stamped with an "R" it's Rosco subbed. Rosco is an OEM for several.
View Quote



Absolutely spot on.
9/28/2024 7:45:59 PM EDT
[#11]
Tell that guy he is moron.
9/28/2024 8:03:19 PM EDT
[#12]
OP, want me to see what is marked on my monolithic complete Colt carbine from about that era?
Liberals are a curious mix of communism and fascism, they want to destroy you but want to use your own money to do it.

I'm getting down to the last box, the others have all been destroyed...
1/23/2025 9:51:09 AM EDT
[#13]
Quote History
Originally Posted By Frens:
Oh btw monolithic uppers use a proprietary barrel… and Colt is the only mfg of those barrels. Doesn’t matter if the barrel blanks are supplied by Rosco, GM, etc
View Quote


Proprietary barrel nut and extension. The barrel itself is not.
1/25/2025 8:18:08 PM EDT
[#14]
Quote History
Originally Posted By AK-12:


Proprietary barrel nut and extension. The barrel itself is not.
View Quote


Most people view the barrel and barrel extension as one part and because most people can’t change a barrel extension, saying it uses a proprietary barrel is the most pragmatic answer.
1/26/2025 4:26:27 AM EDT
[#15]
Should have said barrel assembly

Sign up to continue the discussion

Create a free account to share your thoughts, follow topics, and connect with the AR15.COM community.

Already a member? Sign In