Hello all, I have a vision for a "tactical" shotgun that is not like most tactical shotguns. I want a pretty one. My vision is a 20", 7 shot vent rib barrel, a light mount, a single point sling adapter, and a fiberoptic bead sight, all nickel plated and with wood furniture. I have a large number of these parts for the mossberg 500, but am having trouble finding a vent rib with over 5 shots. Does this exist??