The Warne Mfg 200M, belonging to the Maxima Fixed Ring Series, is designed to fit Weaver-style cross slot bases. Both the front and rear rings integrate a Warne square stainless steel recoil control key. This feature ensures a sturdy \"no slip\" recoil surface across the entire slot of the base, capable of enduring the most intense recoil. The square recoil key of the Maxima provides additional protection against swaging or peening when used on softer or less durable materials.With its width measuring at .705\