Uncle Mike's Magnum Band Swivel - Single & Over Unders Most Single Barrels 12S .850 - .900 Dia. OpticsPlanet Inc is an Authorized US Distributor for Uncle Mike's Swivels. Uncle Mike's Magnum band shotgun swivels is available with the following options: Model #15972: Loop Size: .700-.750 Swivel: QD 115 SG-4 Model #15912: Loop Size: .850-.900 Style: QD 115 SG-1 Model #15922: Loop Size: .775-825 Swivel: QD 115 SWG-12 Model #15932: Loop Size: .800-.850 Swivel: QD 115 SG-2 Model #15952: Loop Size: .750-800 Swivel: QD 115 SG-3 We offer complete line of Uncle Mike's Swivels.For our complete selection of products by Uncle Mike's (Uncle Mike's) on sale please visit our Uncle Mike's page. For more Swivels please visit our Swivels store section. Specifications for Uncle Mike's Magnum Band Swivel - Single & Over Unders: Manufacturer: Uncle Mike's Color: Black Fabric/Material: Steel Condition: New Features of Uncle Mike's Magnum Band Swivel - Single & Over Unders Magnum split barrel band base mounts without tools or dismantling Package Contents: Uncle Mike's Magnum Band Swivel - Single & Over Unders Uncle Mike's 15912: Magnum Band Swivel - Single & Over Unders Most Single Barrels 12S .850 - .900 Dia