Securely mount your favorite riflescope to Winchester 70/670/770/70A rifles with the Leupold 54241 Dual Dovetail/Reverse Front Style 2-Piece Base for Winchester 70/670/770/70A. Comprised of machined steel, this 2-piece base offers great performance when it matters most. The Dual Dovetail⢠system boasts a low-profile design for great scope functionality, and itâs compatible with all Leupold rotary dovetail rings (not included). Leupold 54241 Dual Dovetail/Reversible Front Style 2-Piece Base for Winchester 70/670/770/70A Black - Scope Rngs And Rifle Accessories