Rifle scopes with 30 mm diameter

30 mm rifle scopes are a popular upgrade for strength and internal adjustment. Match the scope to 30 mm rings and the correct height for clean clearance.

• Ring diameter: use 30 mm rings (Picatinny or dovetail). Picatinny offers more models and QD options; add a Picatinny rail if your rifle lacks one.
• Ring height: choose the lowest that clears. As a guide, centerline height ≳ (objective outer diameter ÷ 2) + 2–4 mm.
• Fit checks: verify bolt-handle and barrel clearance—50–56 mm objectives often need medium/high rings, especially with flip caps.