Fla. Stat. § 790.222

A person may not import into this state or transfer, distribute, sell, keep for sale, offer for sale, possess, or give to another person a bump-fire stock. A person who violates this section commits a felony of the third degree, punishable as provided in s. 775.082, s. 775.083, or s. 775.084. As used in this section, the term “bump-fire stock” means a conversion kit, a tool, an accessory, or a device used to alter the rate of fire of a firearm to mimic automatic weapon fire or which is used to increase the rate of fire to a faster rate than is possible for a person to fire such semiautomatic firearm unassisted by a kit, a tool, an accessory, or a device.