AAC Cyclone on a 12.5" .308 Winchester SBR

Discussion in 'NFA Firearms and Accessories' started by The Glockodile, Jun 28, 2022.

  1. The Glockodile

    The Glockodile Member

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    The Flash Hider on my SBR inexplicably went loose, probably from an insufficient application of Rocksett or dirty threads.

    Instead of going through the trouble of finding all my bigger tools to reattach it...

    I just remembered that I had an AAC Cyclone collecting dust somewhere, and it does look really good on this SBR.

    BUT!

    I'm not sure this would be a good idea.

    I guess I could run a pressure curve on QuickLOAD to determine whether the pressures at the muzzle would be similar to that of a 300 Winchester Magnum exiting a 20" barrel...

    ...there are some conflicting Forum discussions wherein the folks from AAC said it's okay, others where they said it wasn't okay. Not sure it's really rated for this much pressure, or even this round.

    Does anyone have any information?
     
    Last edited: Jun 28, 2022
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  2. gotboostvr

    gotboostvr Member

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    No information, but with AAC being closed up I wouldn't use it in that configuration since you'll have to go third party to get it fixed.

    Although, I hear @MachIVshooter does good work.
     
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  3. Zak Smith

    Zak Smith Moderator Emeritus

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    What known ratings does it have? We might be able to extrapolate
     
  4. horsemen61

    horsemen61 Member

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    Pics please!!!
     
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  5. kimberkid

    kimberkid Member

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    Ditto! We need pictures!
     
  6. The Glockodile

    The Glockodile Member

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    Beyond "rated for .308 Winchester," I'm not getting any information online.

    There's a smattering of posts saying it should be relegated to .300 Blackout use...

    This thing's prolly obsolete.
     
  7. The Glockodile

    The Glockodile Member

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    0B066AE8-436F-4313-A4F4-DFCADF1ACF8D.jpeg

    958BEE3F-FFBD-4DEB-A5B8-27D98ABC4515.jpeg

    Will these suffice?
     
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  8. mcb

    mcb Member

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    AAC is back up and running. They are now located here in Huntsville. I have lunch with one of their employees on occasion. They will repair old AAC suppressors for a fee but at least you will have AAC working your AAC products.

    https://www.advanced-armament.com/
     
    Last edited: Jul 14, 2022
  9. gotboostvr

    gotboostvr Member

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    That's good to know!
     
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  10. The Glockodile

    The Glockodile Member

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    B377AA2A-15AF-41CA-BB86-DCEE768462F8.jpeg

    Uhh...

    ...maybe I’ll relegate it for use on my > 20” .308 Winchester barrels.

    That reply doesn’t inspire confidence.
     
    Last edited: Jul 17, 2022
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  11. Zak Smith

    Zak Smith Moderator Emeritus

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    I don't know how it could -- apparently -- be so weak considering what it's made of
     
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  12. MachIVshooter

    MachIVshooter Member

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    Because the thin 316 SS outer tube is all that's keeping a Cyclone together, and the blast chambers are quite small.

    When I do Bravo conversions on them, I take out the first baffle to make room for muzzle devices. Left in place, folks would only have the option of super short MDs like the Griffin EZ Brake and Minimalist or LPM Baby Bell.

    The SD series (and M4-2000, Mini 4) have the same 316 tubes, but fully welded inconel cores which we tie the conversion pieces into after cutting off the 18T or 51T mounts. They also have substantial blast chambers. I have run a 7.62 SDN-6 pretty hard on our 13" .308 AR post sample machine gun, but I would have concerns doing so with a Cyclone.
     
  13. The Glockodile

    The Glockodile Member

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    What is the Cyclone's core like?
     
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