Delivery in EU - BHI Distribution B2B - Based in France

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BUBBLE LEVELS

Scope tube bubble levels are designed to control rifle cant—the slight lateral tilt that causes measurable angular drift at medium and long range. Mounted directly on the scope tube, they provide immediate, in‑line feedback without breaking sight picture. The family typically includes low‑profile versions (sitting close to the turrets), offset designs (extended vial for peripheral viewing), and folding variants (a hinged arm that protects the vial when not in use). Depending on the model, multiple tube diameters are covered—30 mm, 34 mm, 35 mm, or 36 mm—with left/right reversible orientation to suit the shooter and the rifle layout. The common goal is clear: enough sensitivity to reveal very small tilt, excellent bubble readability, and a rigid structure that preserves ergonomics and shot‑to‑shot repeatability.

Installation starts by securing the firearm on a stable rest and leveling the base (rail/receiver) using a master level or a vertical reference (plumb line, electronic level). The level’s ring is positioned on the scope tube where visibility is best from the firing position. Screws are tightened in small increments, to the accessory manufacturer’s torque values to avoid stressing the tube. Perform dynamic checks from actual shooting positions (prone/bench), then confirm the setup; adding a small witness mark helps quick verification later.

A top‑tier scope level combines a fast‑settling vial with high contrast and crisp graduations, housed in a precisely machined body that guarantees concentricity and zero play. Low‑profile designs must clear turrets and throw levers; offset and folding variants must lock rigidly in the working position and resist shift under recoil. Materials (high‑strength aluminum or treated steel) and finishes (hard anodizing, anti‑corrosion coating) ensure longevity.