LaserLyte's ADP-ZK is a quad rail for double-barrel shotguns that adds four three-inch Picatinny style rails for a combination of mountable accessory options.
The Double Barrel Quad-Rail fits most 12-gauge double barrel shotguns, allowing the mounting of lasers, lights and other Picatinny accessories.
The two-piece rail system secures together with six hex screws and clamps tightly to the double barrel of all stagecoach guns. It retails for $74.95.