Every model in the BackCountry series is constructed with 7075-T6 aluminum making them some of our lightest and most rugged hunting-style mounts yet. They’re available in a ringmount and a cross-slot design and the cross-slot bases accept both Picatinny and Weaver-style rings. This cross-slot base is designed to fit a Browning X-Bolt extra long action. – Nothing is more crucial than the link between your scope and firearm. That’s why our mounts are every bit as rugged and dependable as the Leupold optics they secure. And with a huge variety of mounting systems to choose from you’re sure to find the perfect match for your firearm and style of shooting. Made in the USA and guaranteed to hold up to a lifetime of abuse Leupold mounts will never let you down.