A person within the State who manufactures or causes to be manufactured, or sells or gives away or parts with, or offers so to do, or keeps for sale or gift, a slung shot, blackjack, brass knuckles, or similar weapon, shall be imprisoned not more than two years or fined not more than $500.00, or both. This section shall not apply to the manufacture of a blackjack, billy club, or nightstick for a law enforcement officer or the sale or gift thereto. (Amended 1981, No. 223 (Adj. Sess.), § 23.)