The Talley Picatinny Base for Browning X-Bolt 20 MOA with Anti-Cant Indicator Long Action in Hells Canyon color is machined from 7075 T-6 alloy and hard coat anodized to 65 Rockwell. This Talley picatinny base accepts any rings that will fit mil-spec 1913 Picatinny rails. It includes mounting hardware and T-15 Torx wrench.