Gun owners have filed a second lawsuit against the state over gun-related provisions in a new school-safety law, this time alleging that a ban on “bump stocks” is an unconstitutional taking of property.

The case, filed last week in Leon County circuit court, asks a judge to certify a class action and order “full compensation” for what the plaintiffs’ attorneys estimate are “tens of thousands, or more” Floridians who own bump stocks or similar devices.