Looking to get started putting in my form 1 for my 3rd book so I can start build it next year.

I’m looking at a para or commando version of the RPG7 or the Polish RPG-76

Both will require a more then 4 ounces of propellant



The ammunition on both designs will use rocket motors(APCP), the RPG7 will also have a Pyrodex booster stage.

I’m debating if I need to form 1 per round, and whether I should leave the explosive check box unchecked since I won’t have an explosive payload above 1/4 ounce and neither propellants are considered explosives from my understanding.

Before I write to the ATF or just submit the form 1 per round, is there a NFA attorney that could help clarify what I am supposed to do in regards to a non explosive rocket but has over 4 ounces of propellant

Not an NFA attorney, but the plain text of the statute says "any explosive, incendiary, or poison gas rocket having a propellent charge of more than four ounces".
My take is that a chalk, signaling, or marking rocket is not a destructive device.

YMMV

This is my understanding, as well.

My recent communication with the ATF would back up the idea it is not a destructive device however it’s confusing they stated put firearm on the form 1  which wouldn’t be required if it’s not a DD

Maybe someone with a law background can chime in

There have to be some exemptions that you can use

Aerotech makes motors with over 20 lbs of propellant that don't need to be registered as DDs

 

I guess it is a destructive device even though it’s not a destructive device lol

I’m going to have to waste my time registering a rocket and see what happens