Butler Creek Rhino Rib Sling Black Ultra Grip w/Swivels. These Butler Creek Gun Slings feature ultra-grip material under strap to prevent slipping and exclusive Rhino Rib at the strap. We offer complete line of Butler Creek Gun Slings. For our complete selection of products by Butler Creek on sale please visit our Butler Creek page. For more Slings please visit our Slings store section. Butler Creek Rhino Rib Ultra Grip Slings are available with the following options: 23416: Butler Creek Rhino Rib Black Ultra Grip Sling with Gel and Swivels 23426: Butler Creek MOBU Ultra Grip Sling Rhino Rib with Gel and Swivels 23626: Butler Creek Rhino Rib Sling MOBU Ultra Grip w/Swivels 23616: ButlerCreek Sling Rhino Rib Black Ultra Grip w/Swivels Specifications for Butler Creek Sling Rhino Rib Black/MOBU Ultra Grip with Swivels: Manufacturer: Butler Creek Color: Black Width: 1 in Fabric/Material: Neoprene Features of Butler Creek Slings Rhino Rib: Universal fit. Exclusive Rhino Rib at the strap. Ultra-Grip material under strap to prevent slipping. Package Contents: Butler Creek Sling Rhino Rib Black/MOBU Ultra Grip with Swivels Butler Creek Rhino Rib Sling Black Ultra Grip w/Swivels 23616