"Bump fire stock" means a butt stock designed to be attached to a semiautomatic firearm and designed, made, or altered to increase the rate of fire achievable with such firearm by using energy from the recoil of the firearm to generate a reciprocating action that facilitates repeated activation of the trigger.
"Multiburst trigger activator" means:
"Trigger crank" means any device to be attached to a semiautomatic firearm that repeatedly activates the trigger of the firearm through the use of a lever or other part that is turned in a circular motion, but does not include any firearm initially designed and manufactured to fire through the use of a crank or lever.
HRS § 134-8.5