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BCM
Durkin Tactical Franklin Armory
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Posted: 2/9/2022 5:18:52 PM EDT
I'm looking for an AR-308 barrel that is cut with the 25 degree taper, to match up with direct thread suppressors by SIG or CGS.  Examples of factory rifles with this barrel include the Q Fix, SIG Cross, and SIG 716i.  I know that ADCO Firearms has a service for "Contour SIG Reverse Taper", but they will only do this if they are also threading the barrel at the same time, which would mean I would need to find a non-threaded barrel to send to them.

Does anyone have any recommendations for an aftermarket barrel to fit a DPMS-pattern AR-308 that has this 25 degree taper?

Link Posted: 2/9/2022 5:48:18 PM EDT
[#1]
No lead on the barrel, but I would ask Class 3 Machining if they could cut the taper on a existing threaded barrel. They have a dealer account here and posts in the EE.
Class 3 Machining
Link Posted: 2/10/2022 9:23:31 AM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By msgriff:
No lead on the barrel, but I would ask Class 3 Machining if they could cut the taper on a existing threaded barrel. They have a dealer account here and posts in the EE.
Class 3 Machining
View Quote

Thanks!  I contacted them, and they said that they can add the taper without having to shorten the barrel to re-thread.  Great find!
Link Posted: 2/12/2022 6:55:38 PM EDT
[#3]
Yeah, I had mine done by local smith who did no need to rethread it
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