The Area 419 ARCALOCK Clamp Kit for Harris Bipods allows you to adapt your Harris Swiveling Bipod to the Area 419 ARCALOCK Clamp Base or any other Atlas Bipod rail Adapter. Does not include bipod.Note- COMPATIBLE ONLY WITH "S" (SWIVEL) TYPE HARRIS BIPODSFeaturesComes with Harris Adapter and ARCALOCK Clamp BaseReplaces the swivel stud mounting platformWorks with the factory tensioning screw or a KMW Pod LocMachined in house from 6061-T6Type III Black Hardcoat AnodizedDoes not work in conjunction with Area 419 Barricade Stop