Talley 740702 Ring/Base Combo Medium 2-Piece Base/Rings For Winchester M70 Black Matte Anodized Finish 30mm Diamete Talley Manufacturing has set a standard for superior quality for over 40 years. By adopting cutting edge technology in a state of the art facility allows Talley to continue to produce quality firearm accessories that are good enough to bear the Tally name. Specifications and Features: Talley Manufacturing 740702 Two Piece Scope Mounts/Integral Rings 30mm Tube Diameter Medium Height (.500" Front/.625" Rear) Aluminum Construction Matte Black Finish Fits: Winchester Model 70 Post 1964 Short and Long Action Receivers