RugerA(R) Model Specific fit Sold in pairs, Maxima RugerA(R) rings are packaged in model specific configurations to fit RugerA(R)'s proprietary dovetail Warne's Maxima rings are a solid steel, vertically split ring that handle even the most punishing recoil, or large, heavy scopes. Since each firearm manufacturer has their own proprietary mounting rail design, each ring model must be machined to exacting tolerances for proper fit and function. Because of this, the Warne RugerA(R) Rings are able to fit right onto the receiver's dovetail with no need for a mounting base. The RugerA(R) Fixed Rings are available the tapered receiver style like the RugerA(R) M77, Hawkeye & Mfg: Warne Mfg. Company