Kopfjager Mag Series Sling Stud Kit Black. This package This package includes both the innovative 10-32 Sling Stud Adapter for bolt action rifles and the Mag Series magnetic base empowering you to transform your firearm into a precision shooting machine. Specifications for Kopfjager Mag Series Sling Stud Kit: Manufacturer: Kopfjager Color: Black Features of Kopfjager Mag Series Sling Stud Kit Quick setup and takedown Smooth 360 pan and tilt range Package Contents: Kopfjager Mag Series Sling Stud Kit Mag Series Base & Sling Stud Adapter Kopfjager Sticker Manual Kopfjager KJ86011K: Mag Series Sling Stud Kit Black