Description
Ruger 90276 is a 4BO medium 1" scope ring with blued finish. It is sized for scopes with up to a 42mm objective and is sold as an individual Ruger factory accessory. The offset design helps move the scope rearward for eye-relief adjustment.
Ruger scope-ring codes are functional, not decorative: the leading number identifies height, 30 marks 30mm tube rings, HM marks Hawkeye Matte, TG marks Target Grey, and O marks an offset ring. Match the item number, tube diameter, finish, and objective clearance to the rifle and scope before ordering.
- Ruger item number: 90276
- Ring code: 4BO
- Tube diameter: 1"
- Height: Medium
- Finish: Blued
- Package: single ring
- Objective clearance: up to 42mm
- Offset: rearward scope positioning












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