870 with #6 shot, shorter barrel, a lite is always a good idea so you don't shoot the kids in your half awake, scare-out-of-your skull mindset. Sites...not necessary with a shotgun, especially in a house as a shotgun will only spread about 18-24 inches across an average room. And practice, practice, practice. Then think about having to actually pull the trigger, can you do it? If not, you might not want to have a gun around to arm an intruder.
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