Unacceptable.
These so-called “tools” could easily be melted down at some future time, and be re-cast into guns again!
The only way to be sure these Evil atoms and molecules comprising the deadly weapons be completely incinerated into a fine gas, and dispersed.
Perhaps NASA could shoot these materials irrevocably contaminated with Gun Karma into the sun, where they would be burned up and unrecoverable.
I’ve always wondered why they don’t do this with really hazardous waste (spent fuel rods for example). Launch a rocket full of them every now and then.