Those are pretty astounding numbers given all the hoops you have to jump through with the tax stamp and related paperwork.
Yes, the numbers are astonishing. The upside is even moreso.
In countries without the insane taxes and regulation that exist in the U.S. (there are several, much of Europe included), nearly everyone who owns a gun owns at least one silencer.
That translates to a potential U.S. market of 100 million, 100 times as many as now exist. SilencerCo (by my rough estimates) is grossing over 100 million a year, now. The potential is to gross billions a year.
SilencerCo is privately held.