This unimount base is for scopes with a 1″ (25mm) tube diameter, and has a rise of 7/8″ (0.875″, 22mm) from the base to the center line of the scope. Spacing between the rings is 2.25″ or 58mm.
It features three clamping screws to provide a firm grip on the Picatinny rail. The scope is held by 4 cap screws at either ring for excellent holding power.
Note: This product is not manufactured by Addley Precision, but is a quality import. Like all of our products we sell, we stand behind them 100% and will ensure that these products meet all of your expectations.