Facial fractures caused by gunshots are a major challenge for oral and maxillofacial surgeons. Underdeveloped countries present a higher rate of homicides committed by gunshots than developed countries. This case report presents a 25 year-old male victim of a gunshot wound to the mandible, evolving into a complex fracture. The fracture was treated using rigid internal fixation. After 18 months of follow-up, the patient presents good facial appearance and masticatory activity. The gunshot caused the permanent paralysis of the right mandibular branch of the facial nerve. We managed to preserve the involved teeth and mandibular integrity, with complete bone healing. Despite the late infection following plate fixation, healing occurred without further complications, indicating that blood supply was maintained.