GrovTec Shotgun Locking Sling Swivel Set Side-By-Side Shotguns Steel
Amazon.com: Gotical-Shotgun Mag Clamp with Sling Swivel 12 Gauge 1" Pack of 2 Shotgun Clamp New 1 Inch Shotgun Clamp Glass-Nylon Composite Used to Attach a Sling-Swivel to Some Shotguns (Black, 2Pcs)