Hawaii Legalizes Butterfly, Switchblade, Gravity Knives & More
Hawaii repealed the bans on manufacture, sale, transfer, possession, and transportation of Butterfly Knives (Balisongs), Switchblades and Gravity Knives as well as brass knuckles (including Trench Knives and Karambits), Swords and Spears. The new law is effective immediately. Concealed carry remains illegal.
Source: ammoland.com