Tac-Six Pride6 Rail Mount Sling Swivel Stud Black. The Rail Mount system allows you add a sling to any Picatinny rail style rifle that does not have hardware installed. Includes the necessary hardware to install swivels onto Picatinny and Weaver rails. Installs in minutes and can be used with Allen's Magnum Swivel Sets. Specifications for Tac-Six Pride6 Rail Mount Sling Swivel Stud: Manufacturer: Tac-Six Color: Black Features of Allen Rail Mount Swivel Stud Durable and Lightweight Aluminum Sling to any Picatinny Rail Style Includes the Necessary Hardware to Install Swivels Installs in Minutes Can be Used with Allen's Magnum Swivel Sets Package Contents: Tac-Six Pride6 Rail Mount Sling Swivel Stud Tac-Six 14494: Pride6 Rail Mount Sling Swivel Stud Black