30mm Ultralight 1913 MS Rings w/ Level - HIGH (1.18 / 30mm) - Aluminum 7075-T6 - ZEISS Precision Rings WITH INTEGRAL ANTI-CANT BUBBLE LEVEL - ZEISS Ultralight 1913 Mil-Spec Rings are manufactured to the highest of standards from premium materials and with tight tolerances for your long-term safety and field applications. They are designed for optimal long-range shooting solutions and allow for either right- or left-handed operations as well as eye dominance. The bubble level is easily viewed from the shooting position creating no disturbance in your shooting position. A smarter sleeker and ultralightweight ring design for all heavy-duty hunting and shooting applications. - Recoil Lug - Integral bottom recoil lug for best alignment and a secure zero under the harshest recoil. - Bubble Level - Integral anti-cant bubble level in top half of ring. - Ultralight - Approximately 4.41 oz. with screws (pair 30mm low). - Durable Material - 7075-T6 aluminum Mil-Spec Type III 30-micron hard anodized finish – matte black - Refined Design - Compact and refined design with low-profile non-snagging hardware - Type 303 stainless steel top cap screws – with black oxide finish - Micro-radiused on all machined leading edges to ensure a non-marring design