Utilizing proprietary sintered steel technology, Maxima Horizontal offers unwavering strength and precision in a stylish, yet traditional form. Four 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 is 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 clamp STANAG 4694 interface allows for better return to zero and rigidity. Fits both Picatinny & Weaver style bases Designed and Made in USA Palmetto State Armory carries a full line of Optics and Optics accessories at the best prices!