The American Rifle Company M10 Scope Rings are CNC machined from 7075 aluminum alloy and anodized with a mil-spec hard coat for excellent corrosion resistance and a matte-black finish. They also feature a crowned-rail interface which precisely and correctly engaged rails. This allows for a strong and repeatable return to zero when re-mounted. All hardware is stainless steel with a high strength 410 stainless cross bolt. Finally, The uniquely split rings maintain reticle alignment during scope installation while their low profile leaves the shooter with a clear view of the turrets.