Leupold Dual Dovetail Steel 2-Piece Scope Mount, Matte Black - 170358

Features:8-40 adaptable (Mark 4)-Mark 4 tactical bases are the only bases to accommodate both the oversized 8-40 screw and a 6-48 screw, providing compatibility with the widest range of modern tactical firearmsDual Dovetail bases accept all Leupold rotary dovetail ringsAll Leupold optics offer performance that makes them equally at home in hunting or tactical environments, thanks to their outstanding accuracy, legendary ruggedness, and absolute waterproof integrityLeupold's trademarked Dual Dovetail system provides a classic low-profile mount for scopes on a variety of popular actions