Leupold BackCountry cross-slot bases are made of 7075-T6 aluminum, making them some of Leupold's lightest and most rugged mounts yet. This BackCountry cross-slot base is designed to fit a Remington 700 Long Action and accepts both Picatinny- and Weaver-style rings. A set of 8-40 length screws comes included. Made in the USA and guaranteed to hold up to a lifetime of abuse, Leupold mounts will never let you down. RSR -