With classic lines, Maxima Horizontal Rings are the new standard. Utilizing proprietary sintered steel technology, Maxima Horizontal Rings offer unwavering strength and precision in a stylish, yet traditional form. 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. Square, permanently installed recoil keys for positive engagement of ring to base. Fits both Picatinny and Weaver style bases. Made in USA.