The Signature Series DNZ Huntmasters 2-piece Scope Mount is precision machined from solid block 6061T6 aluminum for an extremely rugged mount that weigh approximately 1/3 of steel ring base combos. These easy to install ring mounts require no special tools and provide a rock solid mounting platform with hardened grade eight screws with up to 4x more threads than competing products. This system eliminated the need for selecting a ring and base separate that can loosen over time under the recoil of modern firearms. The Hunt Master series is a solid mount that will will hold true while looking great atop your rifle. Notes:Integral scope ringsMounting hardware included(6-48 screws)Direct mount to receiver without use of additional base