Manufacturer: TacStar 1081172
A barrel clamp secures magazine extensions and provides a sling swivel mounting point. A barrel magazine clamp is highly recommended for shotguns with magazine extensions to keep the mag extension secure and on the gun under harsh handling or extreme conditions.
Stabilizes the Magazine Extension by clamping it to the barrel.
Specifications and features:
Stabilizes magazine extension
Includes stud for QD sling swivel
Fits Benelli Nova, Remington 870, Winchester 1200 and1300 shotguns