My question involves a child custody case from the State of: Arkansas

I was wondering what are an unwed father's rights in Arkansas. I am a supportive stepmom and I feel my husband isn't getting his full rights with his child from an ex girlfriend. My husband pays child support but barely gets to see his son and his ex threatens him all the time that he will never see his son again. I cannot stand this rocky relationship with his ex and the ups and downs that she causes on our lives and I was trying to research an unwed father's rights so we might get some sort of custody or something worked out. To my understanding, I was told, that in Arkansas, an unwed father has NO rights. Can someone help me.