Ruffs Precision Precision Scope Rings Features The Ruffs Precision Scope Rings integrate a co-linear bubble level directly into the ring body letting shooters confirm their rifle is level from the shooting position using their non-dominant eye before breaking a shot. This built-in reference significantly improves mounting accuracy and eliminates cant-induced errors at distance all without the need for separate leveling tools or awkward balancing acts during the mounting process. Machined from 6061-T6 aluminum the ring body and cap offer a strong lightweight foundation for a 30mm scope tube. A 303 stainless steel cross bolt and nut torqued to 45 in-lbs clamp the ring halves securely without over-stressing the tube. An alignment lug built into the ring ensures the cap and base stay properly indexed during cap screw installation preventing misalignment that can stress a scope tube or throw off zero. Ruffs Precision recommends torquing cap screws to 18 in-lbs giving shooters a clear repeatable specification for proper installation. Finished in black and sold as a 2-piece medium height set weighing 4.4 ounces these rings are proudly made in the USA to exacting tolerances. The Ruffs Precision scope rings give precision rifle shooters a reliable built-in leveling solution that speeds up the mounting process and improves consistency in the field. Ruffs Precision Precision Scope Rings Specifications Manufacturer: Ruffs Precision Model: Precision Scope Rings Tube Diameter: 30mm Color: Black Material: Aluminum Ring Height: Medium 1.00 Pieces: 2 Weight: 4.40 oz Available At: GrabAGun