Stay on Target with a Leupold Scope The Leupold BackCountry Scope bases provide a direct mount to the rifle to eliminate any chance or play between the scope base and rings since they are a solid base that mounts directly on the rifle. These bases are made from a single piece of aircraft grade 7075-T6 aluminum for light weight and strength with an anodized finish to last hunt after hunt. The precision machining and quality finish will provide you with lightweight and rugged performance for a lifetime. Leupold helps you hit the target time after time and hunt after hunt. Leupold has been a name in quality equipment for over 100 years and introduced the first made in America fog proof scope in 1947, the Plainsman. They Leupold name is now proudly displayed on all types of optics from hunting scopes to golf range finders and a myriad of items in between. Leupold still has a manufacturing plant in the US that has over 650 employees and manufacturers over 30 different models and is still a family owned business. Leupold BackCountry Scope Rings Specifications and Features: Leupold 171104 Direct Mount Ring 1" Tube Diameter Medium Height Greater Stability Lightweight/Rugged Performance Precision Machined 7075-T6 Aircraft Grade Aluminum Hard Coat Anodized Finish 2 Bases Matte Black Made in the USA Fits: Browning AB3