Franchi Affinity, shell side saddle...who makes em?

[bronco1500]

So I got a Franchi Affinity. Great bird gun. Wanna go tactical with it tho. Id like to have a side saddle similar to this one...


Anybody got an Idea on one that would work for this make/model ? Im guessing something for Benelli....but im hoping somebody has "been there done that"

any help is appreciated