Suppressors Integrally suppressed barrel tax stamp ?

[Bryan27]

Let's say there is a 12" barrel that is integrally suppressed that the overall length ends up being 20", suppressor being permanently part of the barrel. If it were mounted on a rifle, would it require a tax stamp for being an SBR, a tax stamp for the suppressor or a tax stamp for each of them?

 

[Turk]

Re: Integrally suppressed barrel tax stamp ?

1 for the suppressor.