How to add a configuration to an approved form 1

[BigMike]

As always, the internet is full of info that may or may not be reliable. One of the trust websites gave instructions as simple as sending a letter to the ATF stating the additional barrel length, overall length, and caliber. I'm sure someone has done it. If not, can someone recommend a good NFA attorney? Thanks yall.

 

[NWSharpshooter]

No notification of modifications are required unless it is a permanent modification.

 

[redtail]

I wrote a letter years ago changing the caliber, barrel length and overall length. I recieved a return letter thanking me for the notification. The only reason I did it was I was selling the original upper.

 

[rockyfatcat]

@heavyd

 

[Blk03shkr]

I wrote a letter years ago changing the caliber, barrel length and overall length. I recieved a return letter thanking me for the notification. The only reason I did it was I was selling the original upper.

This, or if you want more clarification use the "ask the experts" on the atf e-forms site, after approval you submit a signed letter requesting them to update registry based on the changes you need to make, the letter will be returned back to you stamped indicating that the record has been updated but you will not get a updated form 1. I think they request this but not necessarily required .

 

[TacticalJeebus]

If it’s an AR upper, you don’t have to.