Warne Mountain Tech Scope 30 mm ultra-high matte black rings are designed to be a lightweight rugged scope ring featuring 7075 aluminum construction and stainless hardware to withstand harsh conditions. The Mountain Tech fits Picatinny or Weaver style mounts and are NATO-STANAG compatible. The Mil-Spec 65 in/lb., ½ tactical nut attachments securely clamp to the rail