With the Multi Optic Plate Pattern, this optic mount is going to breathe new life and joy into your shotguns that don’t get enough attention. You’ll now be able to use a huge variety of red dot sights with the following footprints: RMR, Docter/Noblex, C-More, Romeo 1/2/Pro, and Shield RMS. And of course, they include all the hardware you’ll need as well. Shotgun Compatibility: Benelli: M2 Tactical, M3, M4 (not compatible w/ M4 Multirail), Vinci Tactical, Super Vinci, Super Black Eagle II and III, Stoeger: M3000 Series and Franchi: Affinity 3.5.