With 1'' low profile scope rings. Perfect for Ruger 10/22: The picatinny rail mount for Ruger 10/22 model rifles, allowing you add on any standard 21mm picatinny or weaver accessories, such as flashlights, iron sight, red green dot sights, micro dot, scopes, optics, or other tactical accessories.Solid but Lightweight: Precision machined out of premium T6-6061 aircraft aluminum alloy in black matte anodizing finish, offer durable,safe and lightweig performance in using.High Strength Hexagon Socket Screw: Exclusive customized high-strength screws, fits perfectly the Ruger 10/22 factory mounting holes. Screw style and strength standard superior quality to other slotted screws in the market.Perfect Curvature + U-shaped Groove Design: Optimized for your ruger 10/22 rifle,profile one-piece molding match the curvature of the upper of your Ruger 10/22. The U-shaped groove design on top of rail allows you to use your OEM sights, while the rail is still in the assembly state.Easy To Install: Ends chamfer design to reduce sharp edges. Installs in Minutes! It is easy to be attached and detached from the mounts by the matched allen wrench.