Ensure your rifle is level to increase long range accuracy and consistency. Milled from 6061 Aluminum with a Type III Hardcoat Anodization for an aesthetically appealing, highly durable finish. Open-top design lets maximum light to the vial, which is encased in aluminum for a protected design. Installs under nearly all optics with no removal necessary.
Reviews
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MK machining bubble level
By far the best bubble level I've found. Worth every penny.