2R7M
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 Ruger Rings are able to fit right onto the receiver’s dovetail with no need for a mounting base.
The Ruger Fixed Rings are available in two different stylesThe first fits the Ruger #1 receiver design but also fits the Blackhawk, Mini 14 models, and small M77 actions referred to a M77/17; M77/22; M77/357Mag and M77/44Mag. These are listed as #1 in the dropdown menu.
The second set fit the tapered receiver style of the Ruger M77, Hawkeye & Super Redhawk. The Ruger M77 style rings are packaged as two different heights to accommodate the tapered mounting surface on this firearm. They are listed as M77 in the drop down menu.
Lastly, the Ruger Fixed Rings utilize 4 T-15 Torx style socket cap screws for secure and permanent optics mounting.