RTI Range Extender

 The Range Extender allows you to build in up to 120MOA while keeping your scope very close to your barrel. This reduces cant related inaccuracy especially when shooting at long distances. 

The wedge will allow you to set your MOA at 0, 20, 50, 80, 100 and 120MOA. You can also not use the wedge and set it at any angle much like no limit scope rings. 
The range extender is best used with low profile scope rings. 

There is also an integrated bubble level at the back.