My dad recently gave me his Mossberg 500 Turkey gun. it has the 20" Accu Choke in 12 ga. I would love me to put a set of fiber optic sights on it for hunting turkey. I was thinking of trying a ghost ring sight possibly from Tru Glo. Anyone have any experience with this type of sight for turkey or have other recommendations for a good set of fiber optic sights for this gun?