What if your lower says "multi" for the caliber?
What if your lower says "multi" for the caliber?
There have been multiple reports of all applications that used "multi" for caliber being rejected. It may have been ok years ago, but save yourself the hassle and pick a single caliber. Do not use "multi" or try and list multiple calibers. The caliber is normally engraved on the barrel you are using and that meets ATF marking requirements. Here is a post from NFA Gun Trust Lawyer's Blog on the subject:
4c should contain the caliber or gage of the firearm. Only one is acceptable. ( Multi is not acceptable, you can only list one, if you have additional calibers you want to list you should attach additional configurations in a letter attached to your Form 1 stating the caliber, barrel length, and overall length as related to the firearm listed on the Form 1.)
Previously ATF accepted them by being listed in 4h on the Form 1 but no longer accepts this.)
As far as what to list for the caliber, following the guidelines that was posted in the ATF Eforms Bulletin below.
Eform is faster and auto pending
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