Warne 30mm Quick Detach Rings High Matte 215LMMaxima Quick Detach Rings are the most durable and versatile quick detachable mounting system available. Each ring is precision CNC machined from sintered steel technology. When used on the all steel Warne Maxima bases, we guarantee accuracy of within 1/1000th of an inch when removing and reattaching the optics. The recoil control key guarantees the position of the rings will not shift or move under fierce recoil and also protects against peening or swaging when mounted on aluminum bases. Features: Warne indexable lever system. Unique square stainless steel recoil control key. Specifications: Ring Height: High .525 inches. Quick Detach: 30mm. Color: Matte. Contents: Warne 30mm Quick Detach Rings High Matte 215LM.