300 Blackout on a 5.56 form1 lower?

300 Blackout on a 5.56 form1 lower?

Pacs [Team Member]

12/30/2011 12:56:14 AM

If I put a 300 Blackout < 16" on my SBR lower that was listed as 5.56 on my form 1, Is that legal?

SETXshooter [Team Member]

12/30/2011 7:37:34 AM

my understanding is that you may have any upper on the weapon that fits, but it is preferred that it has been listed on the form 1. You must also be in possession of the original listed configuration upper to maintain compliance. In reality, the lower is registered as the sbr regardless of the upper.

Wes

Dedeye [Member]

12/30/2011 8:19:20 AM

As long as the change isn't a permanent one, you can put any caliber and any length barrel on it and be perfectly legal. Even if it is permanent, a simple letter to NFA Branch notifying them of the change is all you need.

Pacs [Team Member]

12/30/2011 11:09:27 AM

Originally Posted By SETXshooter:
my understanding is that you may have any upper on the weapon that fits, but it is preferred that it has been listed on the form 1. You must also be in possession of the original listed configuration upper to maintain compliance. In reality, the lower is registered as the sbr regardless of the upper.

Wes

Thanks. I understand the more than one upper, it was the different caliber I was unsure of..

SETXshooter [Team Member]

12/30/2011 11:14:33 AM

I was assuming different uppers would be different calibers. I have a couple SBR lowers but no duplicate caliber uppers for any of them.

Wes

Pacs [Team Member]

12/30/2011 11:17:43 AM

Originally Posted By SETXshooter:
I was assuming different uppers would be different calibers. I have a couple SBR lowers but no duplicate caliber uppers for any of them.

Wes

Thanks.

I guess I better start saving some money.