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3/22/2025 1:13:30 PM EDT
Im in need of a custom collar. I flew a little close to the sun with the measurements I gave for my SCAR 20 chip and I think im getting some interference between the can and front of the upper causing a big flyer once and a while.

Is this something you can do and if so what would the lead time be?

Here is a pic for reference, not the same collar that was included but it’s what I’m going for

3/22/2025 1:16:36 PM EDT
[#1]
Do you need a different collar that we made as part of the AE contour service?
I'm no good at telling people what they want to hear when I dont believe it myself :)
3/22/2025 1:38:59 PM EDT
[#2]
Quote History
Originally Posted By bigbore:
Do you need a different collar that we made as part of the AE contour service?
View Quote


Yeah, a little longer from the rear where it hits the step in the barrel to the taper and ideally a little smaller OD.
3/22/2025 1:42:35 PM EDT
[#3]
if you can send the one you have, we can make another based in its dimensions to your specs.
I'm no good at telling people what they want to hear when I dont believe it myself :)
3/22/2025 1:53:36 PM EDT
[Last Edit: Mblades][Edited] [#4]
Quote History
Originally Posted By bigbore:
if you can send the one you have, we can make another based in its dimensions to your specs.
View Quote


Awesome!

Edit: what should I pick from the shop services page? Or can I just print the CC authorization form and send it off?
3/22/2025 3:04:59 PM EDT
[#5]
Quote History
Originally Posted By Mblades:


Awesome!

Edit: what should I pick from the shop services page? Or can I just print the CC authorization form and send it off?
View Quote



Just send it in with a note, we'll do an even trade for the new part:)
I'm no good at telling people what they want to hear when I dont believe it myself :)
4/8/2025 10:36:02 AM EDT
[#6]
@bigbore - I'm looking at getting a custom collar fitted for a 12.5" Criterion Core barrel (0.625 gas block journal/profile). Is this doable for this type of barrel?

OP - apologies for hijacking your thread.
Let's Go Brandon!!!
4/8/2025 10:43:49 AM EDT
[#7]
Quote History
Originally Posted By eddster:
@bigbore - I'm looking at getting a custom collar fitted for a 12.5" Criterion Core barrel (0.625 gas block journal/profile). Is this doable for this type of barrel?

OP - apologies for hijacking your thread.
View Quote


https://adcofirearms.com/shop/gunsmithing/contouring/contour-thread-for-allen-engineering-collar/
I'm no good at telling people what they want to hear when I dont believe it myself :)
2/9/2026 10:25:35 PM EDT
[Last Edit: Hoplite][Edited] [#8]
If a barrel is .875 is this the correct service to make it fit?  Also, is the spacing between the collar and brake the same for the fullsize  AEM5 and the k?

https://adcofirearms.com/shop/gunsmithing/contouring/contour-thread-for-allen-engineering-collar-2/
2/11/2026 12:27:26 PM EDT
[#9]
If a barrel is .875 is this the correct service to make it fit?


>>>>>>>>>>>>>>>>>YES


 Also, is the spacing between the collar and brake the same for the fullsize  AEM5 and the k?


>>>>>>>>>>>>>>>>>>YES
I'm no good at telling people what they want to hear when I dont believe it myself :)

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