USED Warne DiviingBoard Mount Black 30 mm. The integral cantilevered rail design not only provides a rock-solid mounting platform that will hold zero in any conditions but can also be used as a stabilizing point for shooters who place their off hand on top of the scope for balance. Specifications for Warne Divingboard Tactical Rails Mount: Manufacturer: Warne Additional Features: To Optic/Picatinny Rail Package Contents: Warne Divingboard Tactical Rails Mount