Bring your optics setup to new heights in terms of security and solidity with the Leupold BackCountry Cross-Slot 1-PC Rifle Base, built specifically to work with the long-action Weatherby Mark 5 or Vanguard rifle models. The base is made from durable, dependable 7075-T6 aluminum with a matte-black finish and can be had with built-in elevation of either 0 or 20 MOA.