Burris 30mm Xtreme Tactical Signature Ring Mounts. New XTR Signature Rings were designed for the tactical shooter. They deliver plenty of holding power, with less weight.

Each ring set includes one set of the /- 0 MOA concentric,  one set each of the  /-5 MOA and /-10 MOA, and two sets of the /-20 MOA.  With these inserts, it is possible to make 0, 5, 10, 15, 20, 25, 30 or 40 MOA of cant in the scope mount. 

Features

• Unique, self-centering, dual steel clamps with full cross-through connection assure proper center on any width Picatinny rail, while adding extra strength
• Revolutionary Pos-Align® Inserts technology, in a tactical ring configuration
• Pos-Align Inserts guarantee perfect centering and maximum scope-to-ring contact for tremendous gripping power without damaging the scope finish
• Lets you virtually sight in your gun without moving the scope adjustments
• Corrects misalignment caused by off-center receiver holes
• Corrects for bases or rings being slightly off-center
• No need for expensive tapered bases or shimming for thousand-yard shooting
• Rugged, robust aluminum tactical rings save weight and mount on any Picatinny and some Weaver style rails

Pos-Align® Inserts
Pos-Align Inserts guarantee perfect centering and maximum scope-to-ring contact, so you get all the clarity, sharpness, and brightness your optic can deliver.

• Virtually sight in your gun without moving the scope adjustments
• Corrects any misalignment caused by receiver holes drilled off-center
• Corrects for bases or rings being slightly off center
• Makes expensive tapered bases or shimming for thousand-yard shooting a thing of the past