Warne 20 MOA Tactical Scope Mounting BasesTrue Picatinny Mil-Spec Scope Mounting Bases are Tough and Accurate Warne Maxima 20 MOA Tactical Scope Bases are all steel, rigid and accurate one piece scope mounting bases. These "20 MOA" bases have 20 minute of angle built into them for easier sight-in at extreme distances. Some riflescopes can run out of elevation adjustment at extreme distances. This mounting base angles or inclines the scope itself to give approximately 200 inches of elevation at 1000 yards. Finished in Matte Black to match the Warne Tactical Rings as well as other matte black scope rings. These bases are built to true 1913 mil-spec Picatinny (Weaver Style) dimensions. Machined from solid alloy steel bar stock and thermally stress relieved to maintain dimensional stability and straightness. These are the most rugged, straight, and dimensionally correct bases on the market. Fitting and Ordering Information - Select your bases from the chart below and then to Place an Order, choose that base number on the Drop Down Menu Above. Please note that the Savage 1 pc. base will not fit the Edge/Axis.