[editor-surveyor]

.
Probably not!

More than half of the guns Americans own have been purchased in the last 10 years.

I doubt that even 1% are defective.
.

[1L]

>>More than half of the guns Americans own have been purchased in the last 10 years.

Purchased, maybe, but not necessarily made during that time. My collection includes at least 3 handguns that were made in the ‘80s or before. My .30-30 is older than I am!