The Leupold BackCountry Cross-Slot one-piece base is engineered to link your scope to a Nosler M21 receiver with a low-profile, lightweight platform. It provides a 20-MOA slope to assist in long-range elevation without altering the optic, and accepts both Picatinny and Weaver-style rings for mounting flexibility. The design uses a milled recoil lug and keeper screw to hold the optic interface secure while minimizing weight.
Key Specifications
- Constructed from 7075-T6 aircraft-grade aluminum for a balance of light weight and strength.
- Includes a built-in 20-MOA slope to support extended-range shooting adjustments.
- Designed specifically to fit the Nosler M21 receiver interface.
- Features a one-piece cross-slot Picatinny rail base for stable optic mounting.
- Accepts both Picatinny and Weaver-style rings for broad compatibility.
- Incorporates a milled recoil lug and low-profile keeper screw to maintain alignment under recoil.
- Style is Cross-Slot to provide a low-profile mounting footprint.
- Length listed as 6.70" as provided by manufacturer specifications.
- Material listed as Aluminum per the manufacturer attributes.
- Weight listed as 0.95 as provided by manufacturer attributes.
Built for hunters and precision shooters who prioritize a durable, lightweight mounting solution, the BackCountry cross-slot base delivers dependable alignment and flexible ring compatibility while keeping overall system weight low. Its 20-MOA geometry and machined construction make it a practical choice for extended-range setups that require a stable, low-profile interface between optic and receiver.





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