[laplata]

Tell me what practical use a bump stock serves.

[Travis T. OJustice]

There is no Constitutional test for “usefulness.”

[Armscor38]

What practical purpose does your speech serve, such as your post? Why not ban it?

[The Pack Knight]

Tell me what practical use a bump stock serves.

That argument is being used by the left already to ban "high capacity magazines" and "assault weapons." When the 3rd Circuit's held earlier this year that the New Jersey ban on magazines with over 10 round capacity did not violate the 2nd Amendment, part of its reasoning is that such magazines are "not well-suited for self defense."

[Ron H.]

Tell me what practical use a bump stock serves.

Doesn't matter what purpose they serve if any. You completely miss the entire point here. What purpose is there for making and selling any kind of firearm if a bow and arrow or a slingshot can be used to kill with instead? Ludicrous you say? I rest my case.