Leupold BackCountry Cross-Slot 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. The base is the foundation of a scope mounting system — it bolts to the receiver and gives the rings something square and solid to clamp to. Get this part wrong and nothing above it can be right.
It fits both Picatinny and Weaver rails, which covers nearly everything with a cross-slot rail on top. 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. 7075 aluminum is the stronger of the two common alloys, roughly 30 percent stiffer than 6061, at the same light weight.
Specifications
- Tube size: 30mm
- Height: Medium
- Mount type: Picatinny/Weaver
- Material: 7075-T6 Aluminum
- Finish: Black
- Part number: 175120
Covered by the Leupold Lifetime Guarantee. Ships from WBT Guns, a licensed FFL dealer serving shooters since 2012.