Here's my primary coyote shotgun:
I have a 26" barrel for this one when I carry ONLY it and use my e-caller when hunting by myself, but most of the time, I'm calling for a partner (usually my wife), or using this as a back-up to my rifle.
Benelli SuperNova
Tac-Star +2 Magazine Extension
Pattern-Master Extended Range Choke w/ Federal #4 buck or Winchester 00 Buck
Carlson's Dead Coyote Choke (0.680") w/ any "flight control" wads
Carlson's 18.5" barrel
Factory 26" barrel
Hand-fit bipod adapter
Winchester Harris knock-off 9-12" bipod
Hand fit foam rubber cheek riser under Allen 5 shot stock wrap
Burris FastFire III 8MOA on a SpeedBead Mount
My wife runs another SuperNova 12ga with the same cheek piece, bipods + adapter, chokes, and extension, BUT with these instead:
Factory 26" barrel
B-Square Saddle Mount
Chinese Knock-off Tru-Glo/NcStar Red Dot