For the most precise long-range shooting, use the bubble level to ensure the rifle is perfectly vertical. This will eliminate potential error caused by shooting a canted rifle. Mounts quickly and easily to the riflescope tube. For best results, mount on the opposite side of your dominate eye.
| Weight | 1.6 oz | 
|---|---|
| Outside Diameter (inches) | 2.2 - 2.4 inches | 
| Outside Diameter (mm) | 55 - 61 mm | 
 
 
                     
                     
                     
                   
             
                   
             
                   
             
             
            