Upgrade your hunting rifle with Tally’s Ring and Base Combo! These premium alloy scope mounts are precision machined from lightweight aircraft grade aluminum alloy, and utilize a simple but highly effective one-piece construction. This design eliminates the risk of out of alignment interfaces or a loose connections that often plague standard two-piece scope rings and bases. This one-piece construction also delivers enhanced strength and better durability when compared to rival steel rings and bases, and have a lighter overall weight. Features of the Tally Ring and Base Combo: Compatible with the Bergara B14, Christensen Arms Mesa/Ridgeline, and Remington 700 Med LA 20 MOA footprintsIntegrated scope and ring base design High-grade lightweight aircraft grade aluminum alloy construction Fully CNC machined Talley 30mm Bergara B14, Christensen Mesa/Ridgeline, & Rem 700 Med LA 20 MOA (Ext. Front) Alloy Lt. Wt. Ring Base Combo 74X700LM