Leupold BackCountry Cross-Slot Nosler M21 LA 20 MOA

Leupold BackCountry Cross-Slot Mounting System

The Leupold BackCountry series represents some of the finest hunting-style mounts available today. This cross-slot base is specifically engineered for Nosler M21 long-action rifles and delivers the precision, durability, and lightweight performance serious hunters demand.

Construction & Materials

Built for the backcountry, this mount is machined from 7075-T6 aircraft-grade aluminum—the same material trusted in aerospace applications. The result is a mount that weighs significantly less than traditional steel bases while maintaining exceptional rigidity and strength. Every component, from the milled-in recoil lug to the low-profile keeper screw, is designed to minimize weight without compromising durability.

Optical Compatibility

The BackCountry cross-slot features a 1-piece Picatinny rail that accepts both Picatinny and Weaver-style rings. This dual-standard compatibility gives you flexibility in ring selection and ensures you can use quality optics from virtually any manufacturer.

Long-Range Ready

The integrated 20-MOA slope is purpose-built for extended-range hunting and shooting applications. This elevation bias allows your scope to achieve zero at 100 yards while maintaining usable elevation adjustment for shots beyond 300 yards—ideal for open-country hunting where distance is often unknown.

Leupold Quality

Every Leupold mount is manufactured in the USA and backed by a lifetime guarantee. The connection between your scope and rifle is critical; Leupold mounts are engineered to be every bit as rugged and dependable as the optics they secure. Built to withstand a lifetime of field use and abuse, these mounts will never let you down.