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Non-SBR Glock 21 FAB Defense Carbine Concept

Discussion in 'Free Fire Zone' started by Boba Debt, Sep 1, 2013.

  1. Boba Debt

    Boba Debt

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    I would like to make a Glock 21 Carbine in a way that does not require and SBR stamp.


    I would use the Gen 2 FAB Defense frame but to make it non-sbr legal I would have to have a 16” barrel.

    My idea is to use a LWD 6.5” treaded barrel and then have a light weight custom shroud/extension to extend the barrel the 16” minimum requirement. It would be pinned and welded


    I think a shroud is the way to go so that you do not have to use custom ammo since still dealing with a pistol length barrel and I doubt anyone will make a 16” solid barrel


    I know some of you think this is a stupid idea but I have built stupider guns :)


    I just need some input on the operation of the gun.



    Does anyone know if the shroud will interfere with the operation of the gun?

    Does anyone actually make a 16" barrel?

    All constructive comments are welcome





    [​IMG]
     
  2. GRT45

    GRT45 Transform & Win

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    Jun 20, 2010
    Texas

  3. Boba Debt

    Boba Debt

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    Aug 21, 2011
    How does that work???

    I mean as the slide goes back, the barrel unlocks. Doesn't the additional length cause issues?

    What about the rounds themselves. Wouldn't the powder burn too fast for that length of a barrel?
     
  4. Boba Debt

    Boba Debt

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    Aug 21, 2011
    I also just read that it is not recommended for the FAB KPOS.

    I'm going to call them tomorrow to find out why.
     
  5. Ranger357

    Ranger357 Just pixels

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    I might be off but did not TC have some type of problem with a similar concept in that with the ATF???

    Something about turning a pistol into a rifle was ok, but when you went then pulled the frame and reinstalled the pistol bbl you had turned a rifle into pistol which is no-no by some legalese convoluted logic?

    Too long ago to recall details, but wondering if this might create same situation.
     
  6. Boba Debt

    Boba Debt

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    Aug 21, 2011
    Your close.

    If you ever turn a pistol into a rifle you can not revert it back to a pistol, which I have no intention of doing. This would be a dedicated gun

    However, for some reason TCs are treated differently by the ATF
     
  7. harleypower69

    harleypower69

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    Jul 19, 2010
    Not attempting to hijack your thread, just a thought. No need to reinvent the wheel. I run a KRISS Vector Carbine that uses Glock 21 mags and of course you can add the 10 round extension to that. Flawless performance to date with a 4 K round count.
     
  8. Photoman642

    Photoman642

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    Jul 22, 2010
    ...and it's "only" $2000! :supergrin:
     
  9. SCmasterblaster

    SCmasterblaster Millennium Member

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    Hartford, Vermont
    Good luck with your project. I'd like to see chronograph results for a 16-inch Glock .40 S&W.
     
  10. Arnold Kuhl

    Arnold Kuhl

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    Apr 15, 2013
    NE Tennessee
    Hell, I'd like to have one of these whether it worked or not.

    AK
     
  11. SJ 40

    SJ 40

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    The welding part would be better off done as silver solder,IIRC that is the way to add a extension,pinning wouldn't hurt either. SJ 40
     
  12. tango44

    tango44

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    Miami Florida
    Is that a RONI....???
    Whts the diff between Gen 1 and 2??
     
  13. Boba Debt

    Boba Debt

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    Aug 21, 2011


    TOO EXPENSIVE, a bit complicated and kind of heavy





    Welding is less invasive then soldering.





    No, it's a FAB KPOS which is made in Israel. From what I have seen the Gen 1 has a side charging handle and the Gen 2 has an AR style charging handle
     
  14. Boba Debt

    Boba Debt

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    Aug 21, 2011
    Due to the cost of the 16" barrel I may just get a tax stamp for this.

    So is this and SBR or an AOW?
     
    Last edited: Sep 3, 2013
  15. Roger1079

    Roger1079

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    South FL
    SBR.....although the idea of $5 as opposed to $200 sounds great, this is wishful thinking.
     
  16. RWBlue

    RWBlue Mr. CISSP, CISA CLM

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    AOW allows a forward grip.

    SBR allows stock and if wanted a forward grip.
     
  17. RWBlue

    RWBlue Mr. CISSP, CISA CLM

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    Not true.

    As long as it starts (registered) as a pistol. You can go from Pistol to rifle to pistol.

    The twist is going from rifle to pistol is a problem.
     
  18. RWBlue

    RWBlue Mr. CISSP, CISA CLM

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    IMHO,
    Have:The Impulse stock is the most solid.
    Have: FAB stick is the light weight option.

    Don't really want: FAB Roni may be useful, but not if you want to add a suppressor.

    Want and can not find: SIG’s Adaptive Carbine Platform LE is the one I would like to get, but can not find for sale.
     
  19. Boba Debt

    Boba Debt

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    Aug 21, 2011

    You can not, under any circumstance, make a rifle into a pistol. It becomes and SBR.



    There is a lot of conflicting info about this process so I don't know what to believe in this case
     
    Last edited: Sep 3, 2013
  20. Boba Debt

    Boba Debt

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    Aug 21, 2011




    What is a FAB Roni???



    Do you mean a CCA Roni?