Ruger 30mm Med(4) Bl (4b30) Sld Indv

The Ruger 30mm Med(4) Bl (4b30) Sld Indv is a genuine factory scope ring engineered for precision rifle applications where optical accuracy and repeatability are non-negotiable. This medium-height 30mm scope ring is purpose-built to mount modern tactical optics securely to Ruger rifle platforms and compatible receivers. Law enforcement and military professionals rely on Ruger factory accessories for zero-loss reliability in the field, where a loose ring or poor mounting geometry can compromise an entire engagement.

This ring accommodates a 30mm scope tube diameter with a 42mm objective lens design—a common configuration for mid-to-long-range hunting and tactical rifles. The blued steel finish provides corrosion resistance and maintains aesthetic consistency with blued receiver steel while resisting salt spray and moisture common in field operations. The medium height (4) specification ensures proper cheek weld geometry and sight picture alignment when mounted on standard receiver rings, allowing adequate clearance between the objective bell and receiver without inducing unnecessary height that degrades ergonomic handling or increases exposure profile.

This individual ring (sold one per unit) suits shooters building custom bolt-action precision rigs, maintaining or restoring Ruger rifles, or upgrading optic systems on existing platforms. Pair two rings to complete your scope mounting solution—one forward and one rear position. Compatible with any quality 30mm scope featuring a 42mm objective diameter, whether fixed-power optics for mission-critical work or variable magnification for dynamic range environments. Installation requires standard scope ring mounting procedures and a torque wrench set to manufacturer specifications to ensure zero retention across thermal cycles and recoil impulses.