Evolution Gun Works Picatinny Rail Scope Mount Mossberg 500 590 835 930 935 Shotgun Late after 1997

Evolution Gun Works Picatinny Rail Scope Mount Mossberg 500 590 835 930 935 Shotgun Late after 1997. F. Mossberg & Sons 500 series of shotguns. The mounting holes for this Evolution Gun Works scope base fit older Mossberg 500 shotgun models while the countersink openings are sized to fit newer Mossberg shotgun models. Evolution Gun Works manufactures the EGW Mossberg 500 Shotgun Scope Mount to the Picatinny specification to accept both Picatinny and Weaver scope rings. The extended-length base a