No retail dealer shall within the District of Columbia sell or expose for sale or have in his or her possession with intent to sell, any pistol, machine gun, sawed-off shotgun, or blackjack without being licensed as provided in § 22-4510. No wholesale dealer shall, within the District of Columbia, sell, or have in his or her possession with intent to sell, to any person other than a licensed dealer, any pistol, machine gun, sawed-off shotgun, or blackjack.
D.C. Code § 22-4509