The Las Vegas shooting is a hugely tragic example of the misuse such items can make possible.
Perhaps the next few coming weeks will see these stocks banned in reaction to the tragic loss of life - and I don't feel ready to debate that issue in detail.
However - American news services are reporting SALES of these after-market stocks have rocketed to people who are guessing that they will likely soon be removed from the US shelves..
The Hearing Protection Act - HR367 .. the "Silencer Act" has apparently already been withdrawn from Congress.
Personally, I question the motivations of such shoppers - but of course there will be many who might question my interest in shooting skills and firearms technology. To such folk I would like to record that I was taught to shoot (First Class Shot CCF Navy) and drill with military weapons at school in UK as a fifteen year old (in 1959).
Blaming any crazed killings on the tools used is misguided. Even if any 'Ban' were so effective as to totally remove ALL such mechanisms from existence - a determined murderer would seek alternative means.
Look for clues to this sickness in the W C Fields 1941 American philosophy -
"Never give a sucker an even break."
.. take every opportunity to trick others out of their money.
US Government figures record more than 300 Million privately owned firearms - & the industry is valued at more than 50 Billion Dollars per year.
There are strong societal reasons why many US citizens feel so insecure and threatened as to need personal weaponry ..
The Second Amendment of the United States Constitution reads: "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."