Sig Sauer Alpha6, Scope Ring Set, 30mm Low, .85 Height, Anodized Finish, Black, Fits Picatinny SOA63001 Sig Sauer's aluminum alloy ALPHA6 Scope Rings are machined with an exactness that is both strong yet ductile that allows their rings to form around a riflescope, yet will not damage scope under proper installation. The aluminum rings are anodized for protection and durability, providing longevity against any elements.