Sig's proprietary steel alloy ALPHA Hunting 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 steel rings are epoxy powder coated to prevent oxidation and resist gun oils, cleaning solutions, and outdoor exposure. Features:Steel weaver-style ringsCovered by Sig's infinite guaranteeSpecifications:Model: HuntingModel: AlphaType: RingSize: 1" MedColor: BlackFit: Picatinny