EGW Guns Scope Base Features The EGW Guns Scope Base is precision machined from domestic 6061 T6 extruded aluminum with Picatinny slot-and-rail spacing that allows fast simple changes to eye relief and far more flexibility in scope selection than a factory mount. The lightweight tactical design incorporates a milled center channel for weight reduction keeping the finished base at just 2 oz without sacrificing rigidity. Full-width cross-slots are gauged to MIL-STD 1913 specifications to within 0.002 inch ensuring a consistent secure fit for Picatinny or Weaver rings across a range of optics choices. The matte black anodized finish resists wear and corrosion while matching the factory look of the Winchester 88 and 100 receiver. Because the base is drilled to fit the factory scope mount holes already present on the receiver installation requires no drilling or tapping of the gun itself. Included socket head Torx screws and a wrench make mounting straightforward and EGW recommends 20 inch-lbs of torque with a drop of blue Loctite for a secure long-term fit. At 5.882 inches overall length with a 2.45 inch center spread and a 0.4 inch mounting height the base is sized to work cleanly with standard Picatinny ring sets. This ambidextrous scope base gives Winchester 88 and 100 owners a durable no-gunsmithing path to modern optics mounting. EGW Guns Scope Base Specifications Manufacturer: EGW Guns Model: Scope Base Type: Scope Base Material: Aluminum Color: Matte Black Mount Type: Picatinny Rail Elevation: 0 MOA Number of Bases: 1 Overall Length: 5.882 Height: .4 Center Spread: 2.45 Weight: 2 oz Compatible Hosts: Winchester 88 Winchester 100 Available At: GrabAGun