Leupold 174499: This product features the exceptionally versatile Leupold steel standard bases and rings which are considered amongst our most adaptable mounting systems. The rear ring\'s stability comes from adjustable windage screws, thereby conserving the scope\'s personalized adjustments for intricate sight-in.Moreover, it is equipped with shims for major elevation modifications, allotting the scope\'s elevation changes specifically for bullet drop compensation dial applications. This functionality enhances accuracy and precision during use.