[marktwain]

How many ‘unregistered firearms’ are in the US

Hundreds of millions.

Very few firearms in the USA are actually "registered".

Only a few states require them to be registered, and most of the requirements are relatively recent.

[Big Red Badger]

‘Hundreds of Millions’——
The pistol brace issue was another registration issue that apparently turned
Into massive noncompliance.
Obviously our gun culture is
Very suspicious.