The Warne Mfg 215M belongs to the Maxima Fixed Ring Series and is designed to fit Weaver style cross slot bases. One of its crucial features is the Warne square stainless steel recoil control key that is incorporated in both the front and rear rings.This intricate design provides a no-slip positive recoil surface throughout the full span of the base. It demonstrates remarkable resilience and can endure the most powerful recoil. This seamless blend of functionality and durability makes the Warne Mfg 215M a standout choice.