Karachi sessions judge approved bail of Jiye Sindh Quami Mahaz (JSQM) chairman Bashir Qureshi and his companion Badaruddin on Saturday.
Approving the bail plea, the court told them to submit bail bond worth Rs 100, 000 each.
Earlier on Friday, Qureshi was sent to jail by the magistrate on four-day judicial remand and police officials were directed to verify the arms licenses issued to him.
Rangers had arrested Bashir Qureshi along with his four companions on Thursday for carrying illegal weapons.