Maxima Horizontal scope rings are designed, engineered and manufactured by Warne's expert staff in Tualatin, Oregon. Utilizing proprietary sintered steel technology, Maxima Horizontal offers unwavering strength and precision in a stylish, yet traditional form.4 screw ring caps, along with a unique recoil key and clamp offer easy installation and unrivaled holding strength. With classic lines, and Warne's return to zero guarantee, Maxima Horizontal are the new standard.Features:CNC machined from sintered steel for superior strength and clamping benefits.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 clampSTANAG 4694 interface allows for better return to zero and rigidityFits both Picatinny & Weaver style bases