Designed, engineered and manufactured by Warne's expert staff in Tualatin, Oregon, these Maxima Horizontal Rings deliver unwavering strength and precision in the classic horizontal configuration. Backed by Warne's Return to Zero Guarantee, each is precision-machined from premium sintered steel, and features permanently installed recoil keys for positive engagement and incredible hold. CNC-machined from sintered steel Fits Picatinny & Weaver-style rails, and is NATO/STANAG compatible STANAG 4694 interface allows for better return to zero and rigidity Square, permanently installed recoil keys for positive engagement of ring to base Rings mount securely around scope using (4) Torx T-15 cap screws, (2) screws for each clamp Backed by Warne's Return to Zero Guarantee Made in USA Order today!