Leupold Mark 4 Scope Base – 30mm, Medium, Black
Leupold has been machining scope mounting hardware in Oregon since long before most of the current market existed, and their ring and base systems are the reference other makers get compared against. Scope bases mount directly to the receiver and set the platform everything else references. Fitment is the whole question: the right base for your exact action, or none of it works.
It clamps to a Picatinny rail, the MIL-STD-1913 slot pattern used on virtually every modern rifle, so mounting position is adjustable along the rail. Sized for a 30mm tube, now the most common size on modern scopes because the larger tube allows more elevation travel. Medium height is the usual answer for a standard hunting scope — enough clearance for a typical 40mm to 44mm objective without raising the scope more than necessary. Steel construction adds weight but resists deformation under clamping force better than aluminum, which is why it stays popular on hard-kicking rifles.
Specifications
- Tube size: 30mm
- Height: Medium
- Mount type: Picatinny Rail
- Material: Steel
- Finish: Black
- Part number: 61049
Covered by the Leupold Lifetime Guarantee. Ships from WBT Guns, a licensed FFL dealer serving shooters since 2012.