Most of the illegal small arms end up in the states of Bihar, Chhattisgarh, Uttar Pradesh, Jharkhand, Orissa and Madhya Pradesh. In India, a used AK-47 costs $3,800 on the illegal black market. But a large amount of illegal small arms are made in illegal arms factories in Uttar Pradesh and Bihar, and sold on the black market for as little as $5.08.