30mm High Profile Cantilever Scope Mount With Mini Picatinny Rails

30mm Diameter Cantilever Scope Ring Mount With Top Rails by  - Works with scopes with a tube diameter of 30mm only. - See through, doesn't block view of front post / backup sight - Anodized black matte finish, with 3mm Allen wrench and extra screw. - Proper Eye Position Ready. - Extended length of cantilever provides versatile positions. - Integrated rails mount can attach additional accessories such as a flashlight or laser.  - Center of rings to rail base 1.40 inches