Strong, lightweight aluminum clamp attaches securely to barrel to provide extra support for extended magazine tube. Eliminates unwanted vibration under recoil to ensure smooth, reliable feeding of rounds. Low-profile design, rounded edges, and flush-mounted hex-head machine screws prevent snags and damage. Hardcoat anodized surface adds strength and exceptional resistance to surface abrasion.

 If you are looking for a light mounting option tis provides a great platform for that. The rail sits snugly along side the shotgun and is capable if being mounted on either side.