Arkansas - 5-73-121. (a) A person who carries a knife as a weapon, except when upon a journey or upon his own premises, shall be punished as provided by section 5-73- 123(b). (b) If a person carries a knife with a blade 3-1/2 inches long or longer, this fact shall be prima facie proof that the knife is carried as a weapon. http://www.knife-expert.com