Does anyone know if there is enough barrel profile diameter to cut down an AAC 12.5" barrel to around 9-9.5" and have proper threading/shoulder? The barrel profile seems to taper and then flare back out at the muzzle.
picture borrowed from AAC's website
Cut and thread 12.5" AAC barrel to 9"?
Moderators: gds, bakerjw, renegade
-
- Member
- Posts: 48
- Joined: Thu Dec 21, 2006 10:28 am
- Location: Austin, TX
Re: Cut and thread 12.5" AAC barrel to 9"?
I have no idea as to answering your question. But, if it were my barrel, I would just buy a 9" and sell the 12.5". It just seems like an easier solution than sending it off to be cut down, wondering if it would cycle properly and hoping it was threaded concentric to the bore. Of course, a reputable business should do it properly. But, I would also assume any warranty on the barrel would be void after shortening it.
300BLK AR-15 with 10.5" Noveske barrel (1:7 pistol length gas)
300BLK 16" AAC Handi Rifle (1:7 twist)
300BLK 16" AR-15 with 16" PSA FN barrel upper (1:8 pistol length gas)
300BLK 16" AAC Handi Rifle (1:7 twist)
300BLK 16" AR-15 with 16" PSA FN barrel upper (1:8 pistol length gas)
Re: Cut and thread 12.5" AAC barrel to 9"?
Cost involved is more of a factor. A concentric thread is easy. Think about this though, if you can't find a 9" AAC barrel Noveske would be happy to sell you one for the same price.
Industry Pro Staff for Dynamic Research Technologies When One Shot is All You Get www.drtammo.com https://www.facebook.com/drtammo/
Join the Revolution http://youtube.com/watch?v=3_Xnx3BFuLk
Join the Revolution http://youtube.com/watch?v=3_Xnx3BFuLk
Re: Cut and thread 12.5" AAC barrel to 9"?
Depends on what you are planning to mount.
Many suppressors want a shoulder of at least .750, which is the diameter of the journal for the gas block. The barrel will be less than that from there forward.
If it is not a direct thread you might have more options, but you will need to talk to the manufacturer of your chosen mount.
Many suppressors want a shoulder of at least .750, which is the diameter of the journal for the gas block. The barrel will be less than that from there forward.
If it is not a direct thread you might have more options, but you will need to talk to the manufacturer of your chosen mount.
300 Blackout, not just for sub-sonics.
Re: Cut and thread 12.5" AAC barrel to 9"?
Not sure what locals charge by you to cut and thread a barrel but around me they all want $100 or more. I'd say your better off buying a new barrel and selling your old one.
-
- Member
- Posts: 48
- Joined: Thu Dec 21, 2006 10:28 am
- Location: Austin, TX
Re: Cut and thread 12.5" AAC barrel to 9"?
Hi all, thank for the feedback. I got an offer to buy the upper at a really good price but it seems not worth the trouble. I ended up going a different route.
Re: Cut and thread 12.5" AAC barrel to 9"?
I wouldn't. Too much trouble and cost, and you would have to use non-standard threads.
Re: Cut and thread 12.5" AAC barrel to 9"?
If the diameter is smaller then you might be stuck with a 14mm thread or 15mm thread like a fal uses. Yes I know it isn't a metric thread but it is 15mm diameter.
Industry Pro Staff for Dynamic Research Technologies When One Shot is All You Get www.drtammo.com https://www.facebook.com/drtammo/
Join the Revolution http://youtube.com/watch?v=3_Xnx3BFuLk
Join the Revolution http://youtube.com/watch?v=3_Xnx3BFuLk
Who is online
Users browsing this forum: No registered users and 31 guests