The unique Benelli M2 20 gauge SpeedBead Mount makes it easy to add a FastFire red dot sight to your shotgun. It’s ideal for clays and for hunting waterfowl, upland birds, and turkeys. All SpeedBead Mounts are compatible with all FastFire red dot sight models Mounts the optic between the stock and receiver with 2 screws Low mounting system means your line of sight falls just above the vented rib Allows for accurate and instinctive aiming Mfg: Burris