Burris

New XTR Signature Rings were designed for the tactical shooter. They deliver plenty of holding power with less weight. - 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 most Weaver style rails