EGW Guns Scope Base Features The EGW Guns Scope Base is precision machined from extruded aluminum with Picatinny slot-and-rail spacing letting shooters make fast eye relief adjustments and choose from a wide range of scope ring options. Full-width cross-slots are gauged to MIL-STD 1913 specs to within plus or minus 0.002 inches ensuring consistent compatibility with both Picatinny and Weaver ring systems. A 0 MOA elevation profile keeps the base level with the bore making it well suited to standard hunting and target distances on the Ruger American long action platform. Lightweight Tactical construction with a milled center channel reduces overall mass without compromising the rigidity of the mounting surface. Drilled to fit the factory scope mount holes on the Ruger American long action receiver the base installs without any drilling or tapping of the rifle. Socket head Torx screws and a wrench come included for installation and EGW recommends 20 inch-pounds of torque along with a drop of blue Loctite to keep the base secure through recoil. The matte black finish matches factory hardware while resisting wear from field use and repeated scope swaps. For Ruger American long action owners who want a dependable Picatinny rail without gunsmithing this EGW base delivers precise American-made construction at an accessible price. EGW Guns Scope Base Specifications Manufacturer: EGW Guns Model: Scope Base Type: Scope Base Material: Aluminum Finish: Black Matte Compatible Hosts: Ruger American Centerfire Long Action Elevation: 0 MOA Mount Type: Picatinny Rail Center Spread: 3.538 Overall Length: 7.064 Available At: GrabAGun