LSI Citadel Warthog. I call it a poor man's Benelli as it uses the same inertia system and Mobil chokes. It comes with 3 extended chokes and the receiver has an 11 mm dovetail. I bought an 11 mm dovetail to picatanny adapter 46 mm long and a Crimson Trace red dot. The dot is similar to a Sig Romeo 5, has high and low mounts, but is only $69.