Standard Contender hanger bars are made to attach to the factory threaded dovetail inserts installed in the barrels. There are bars available for both the super 14 (pistol) and the super 16 (rifle) barrels. The forend attaches to the bar with a single screw. Note: Factory style forends must be altered before use with the hanger bars. Please see the "Forend Conversion" section of the web site.