Revolutionize your shooting experience with the arrival of the cutting-edge Wheeler Sporter Bi-Weaver style/picatinny rings. These revolutionary rings introduce a base that seamlessly adapts, allowing for effortless switching between weaver and pic rail compatibility. Designed to endure the rigors of hunting and competitive shooting, these rings are constructed from robust 6061 aluminum and come equipped with four offset screws for on-the-fly adjustments.Specifications and Features: Size: 30mm Ring Height: Low Center Scope Height: 0.87" Base to Bottom Height: 0.28" Cap Screw Torque: 15-18" Lbs Weight: 2.81 Oz