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Thread: SBR Question

  1. #1
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    SBR Question

    If I own a registered SBR that is listed as having a 14.5" barrel on the Form 4, can I also buy a 10.5" upper as a spare, put that upper on the gun and go to the range and shoot?

  2. #2
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    Yes you can

  3. #3
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    Yes. Permanant changes need to be reported.
    "Real men have always needed to know what time it is so they are at the airfield on time, pumping rounds into savages at the right time, etc. Being able to see such in the dark while light weights were comfy in bed without using a light required luminous material." -Originally Posted by ramairthree

  4. #4
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    My examiner was nice enough that she had me email all possible barrel lengths and calibers to her so she could make a note of them while she was processing my Form 1.

    So the original length was 10.5 (the smallest I would go) and added 11.5, 12.5 and 14.5 plus 9mm and .22lr to the calibers (with .223/5.56 being the original)

  5. #5
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    ATF asks that you send them a letter describing caliber, overall length... that you are going to use on the gun. If you are lucky enough, like m249saw, to have an examiner allow you to e-mail it then you are set.

    I do not know of anyone getting into trouble because they made a temporary, non permanent, change to their gun and had not sent ATF a letter.

  6. #6
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    It is the nature of the AR platform that ALL changes are theoretically temporary, as long as you keep an upper of the original configuration, right?

  7. #7
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    Quote Originally Posted by RAM Engineer View Post
    It is the nature of the AR platform that ALL changes are theoretically temporary, as long as you keep an upper of the original configuration, right?
    That is my understanding.

  8. #8
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    If you ask the NFA Branch they will tell you that they want a letter with every caliber and barrel length combination you are going to use on the gun. Again, I have never known anyone who did not comply with that request to get into trouble for a temporary change.

  9. #9
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    As said as long as you have in your possession an upper in the length you originally registered you should be ok.

    Who was your original examiner? Maybe give them a call and see if they will allow you to email the info and they can amend the paperwork on their end.

  10. #10
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    It was my understanding that if you were approved for say a 10.5" and you put a 14.5" on there then you would be good to go. That's because you registered it with the shorter length. If you originally had a 14.5" you couldn't go shorter without sending notification.

    Just my thoughts.



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