Leupold 1-Piece Mark 4 8-40 Adaptable Steel Scope Base 20 MOA Browning A-Bolt SA Matte Black

Leupold mounts are every bit as rugged and dependable as the Leupold optics they're intended to secure. With a huge variety of mounting systems for nearly every type of firearm under the sun you're sure to find the perfect match for your firearm and your style of shooting. The rugged 8-40 screws increase mount strength by 41 percent. Also available in a 20-MOA Long-Range Shooter model that can accommodate both the 8-40 screw and a modified 6-48 shoulder screw for greater mounting flexibility. Fi