I got a Benelli M2 20ga (I prefer 20 over 12) and as I start to look for standard mods (springs, lifter, etc), the only reliable mod specific to 20ga is the extension tube.
Taran said their parts are specifically for the 12ga.
I'm waiting to hear back from Benelli on what parts/specs the 12/20 share.
Does anyone know resources for 20ga modifications? Spring kits, lifters, etc?