If I may offer an opinion, it's my experience that a scope of any kind is a poor idea for a self-defense shotgun. A scope is great if you plan to go deer hunting, etc, but not for self-defense. There's a natural tendency to want full target acquisition when a gun is scoped. When in tight quarters, you don't want to lose even an instant trying to acquire the target; you need to be able to point & shoot. Let the pattern do the acquisition for you.
That's my suggestion. Enjoy your new toy.
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