One of those tools that you don't need until you need it but still one of the 5 guns every man should own, IMO.
Handgun for portability and concealment.
Shotgun for small game and the best home defense weapon.
High powered rifle for large game and reaching out.
22 cal for critters, it's quiet and you can shoot all day for $20.
AR for SHTF.
Owning anymore than that is gluttony and you're probably a prepper!