Maxima fixed rings are designed to be the strongest, most durable fixed mount system available. They utilize 4 T-15 Torx style socket cap screws for secure optics mounting. The Maxima fixed series fit Weaver style cross slot bases and incorporate a Warne square stainless steel recoil control key in both the front and rear rings. This ensures a no slip positive recoil surface across the entire slot of the base and is capable of withstanding the heaviest of recoil. Warne Maxima scope rings are designed to fit Warne bases as well as all Weaver cross slot and Mil Spec Picatinny style bases and rail.