This is the G style super precision mount. 30mm scope ring diameter. 

1.93" height scope mount, ideal for your favorite Nightforce NXS, 

Vortex HD Gen II, or other low-power variable optic.  

This mount is ideal for the AR and SCAR platforms where the higher scope mount allows for 

a more neutral head position and an enhanced eyebox, equating to fast mounting of the rifle and shots on target. 

This is without a doubt one of my favorite optic mounts and Geissele doesn't fail with their exceptional manufacturing 

and attention to detail.  These mounts are a work of art.