EGW Mossberg ATR/4X4 long action scope bases offer the adaptability of a one-piece picatinny scope rail for your shotgun, eliminating 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 extensive flexibility in scope selection. They are pre-drilled to align with the factory scope mount holes on the gun's receiver and 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 meet MIL-STD-1913 specifications with a tolerance of +/- 0.002 inches. Constructed from ultra-rigid, extruded 6061-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 secure mounting.

The EGW Mossberg ATR/4X4 long action scope bases enable rapid and adaptable adjustments to eye relief and scope selection, thanks to picatinny slot-and-rail spacing
Precision-machined from extruded 6061-T6 aluminum, the scope bases ensure durability and rigidity, fitting factory scope mount holes on Mossberg 100 receivers
The lightweight tactical mounts include all essential hardware, such as Torx screws and a wrench
EGW advises applying 20 in-lb of torque and a drop of blue Loctite for secure installation

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