Leupold BackCountry cross-slot bases are crafted from 7075-T6 aluminum, making them some of the lightest yet most rugged mounts available. Specifically designed to fit the Nosler M48 short-action, this BackCountry cross-slot base accommodates both Picatinny and Weaver-style rings, providing versatility for your optics setup. The connection between your scope and firearm is critical, which is why our mounts are built to be as rugged and dependable as the Leupold optics they secure. With a wide variety of mounting systems to choose from, you're sure to find the perfect match for your firearm and shooting style. Proudly made in the USA and guaranteed to withstand a lifetime of use, Leupold mounts are engineered to deliver reliability you can count on, ensuring that they will never let you down in the field.