In a medium bowl combine the butter, ranch seasoning, garlic, vinegar, and black pepper. Mix well.
Place the wings in a gallon sized zip top baggie. Pour the marinade over top of it and refrigerate for at least 3 hours or up to 12 hours.
When ready to cook place the wings in an Air Fryer at 360 degrees for 20 minutes, shaking or turning the wings after 10 minutes.
Raise the temperature to 400 degrees and cook for an additional 5 minutes.