EGW Remington XP 100, model 7 4-hole Heavy Duty scope bases offer the adaptability of a one-piece picatinny scope rail for your shotgun without the need for drilling or tapping. These bases are precision-engineered from extruded aluminum, featuring picatinny slot-and-rail spacing that facilitates quick and straightforward adjustments to eye relief, providing significant flexibility in scope selection. They are pre-drilled to align with the factory scope mount holes on the firearm's receiver and are compatible with both picatinny and weaver scope rings. The Heavy Duty mounts are designed to be 0.10 inches lower than the lightweight mounts, reducing weight and positioning the optic closer to the barrel centerline, thereby enhancing accuracy. The full-width cross-slots are manufactured to MIL-STD-1913 specifications with a tolerance of +/-0.002 inches. Constructed from ultra-rigid extruded 7075-T6 aluminum, 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 optimal installation. The EGW Remington XP 100, Model 7 4-hole heavy-duty scope bases facilitate rapid eye relief adjustments and scope changes, compatible with picatinny or weaver rings Precision-machined from 7075-T6 aluminum, these scope bases offer durability and rigidity, designed to fit factory scope mount holes on the receiver The package contains Torx screws and a wrench for installation, recommending 20 in-lb of torque and blue loctite for secure mounting