Not sure what you mean. Hyperbole?
3D printing is in its infancy. Yes, you couldn't make an assault
rifle without doing something about the chamber pressure of
exploding bullet. But there are ways around that - such as
containing the pressure to the cartridge, or having a metal insert
or even waiting for 3D metal printing.
Whatever, untraceable and cheap weapons are going to be a
big headache for future generations.
My boyfriend points out that
-there is no explosion, nitrocellulose in not an explosive
-it is the powder in the ctg that burns, not the "bullet",
that latter being the part that exists the weapon.
-chamber pressure will typically be around 45,000 psi,
far in excess of what any plastic could contain.
-the barrel and "bolt" will have to be made of high
strength steel.
-printing a barrel and bolt to the very complex and
exacting specs re hardness etc is sci fi of the
first order
-untraceable (what good does it do to "trace"
a gun?) and cheap weapons are abundant in the USA
now.
IF the concern is that effective and invisible-to-xray
weapons might become widely available, well, maybe
they will. Who knows. 3D printing is not doing that.
You may be right that the OP was not actually hyperbole
The exaggerated and false statements were meant to
be taken literally.