Four-Hole Skeleton Rings 1 Inch Achieve a perfect balance of strength and lightweight design with Weaver's Four-Hole Skeleton Rings. Precision machined from 6061 T6 aluminum, these rings feature a skeletonized design that reduces weight without compromising durability. Finished with a Type III hard-coat anodizing, they are built to withstand the harshest conditions while providing a sleek, tactical look. Key Features: Lightweight Yet Strong: Skeletonized design crafted from aircraft-grade 6061 T6 aluminum ensures optimal weight reduction with maximum strength. Secure & Reliable: Equipped with no-strip Torx screws for superior lockdown and dependability. Durable Finish: Type III hard-coat anodized finish offers rugged durability and resistance to wear and tear. Proudly Made in the USA: Manufactured to exacting standards for unmatched quality and performance. Weaver Recommended Torque Specs Cap Screws: 15-20 in lbs Crossbolt: 35-40 in lbs Instruction Manual