This gun looks like aliens tried to mimic human weaponry.

I want to say that's a Turkish shotgun.

Late to the party, but it's a Benelli Nova. I have one myself, a Tactical model with 18" cylinder bore barrel and rifle aperture sights.

Color me surprised then. But, as far as being late to the party goes, don't sweat it, it's all good.

This looks like something out of a Bethesda game