EGW Mauser 98 large ring 3-hole scope bases are precision-engineered rifle bases crafted from extruded 6061-T6 aluminum. These bases feature picatinny slot-and-rail spacing, facilitating quick and straight forward adjustments to eye relief and offering extensive flexibility in scope selection. They are compatible with both picatinny and weaver scope rings. The lightweight tactical mounts incorporate a milled center channel to reduce weight. The full-width cross-slots are manufactured to MIL-STD 1913 specifications with a tolerance of +/-0.002 inches. The package includes socket head Torx screws and a wrench. EGW advises applying 20 in-lb of torque and a drop of blue Loctite for secure mounting. Precision machined from 6061-T6 aluminum, the EGW Mauser 98 large ring 3-hole scope bases provide versatile scope options with picatinny slot-and-rail spacing The scope bases are compatible with picatinny and Weaver rings, incorporate a milled center channel for reduced weight, and include full-width cross slots per MIL-STD 1913 specifications The package includes socket head Torx screws and a wrench for installation Apply a drop of blue loctite and tighten to a recommended torque of 20 in-lb