TALLEY 1″ HIGH EXTENDED RINGS: Integrated, lightweight alloy mounts (P/N: 95X725).COMPATIBILITY: Fits Savage Rifles with Round Receivers (AccuTrigger models).1 Also fits Ruger American Centerfire.FEATURE: Extended front ring placement for critical eye relief adjustment.HEIGHT: High profile for scopes with large objective lenses (50 mm +).DESIGN: One-piece unitized construction for superior strength.