Our proprietary steel alloy alpha3 scope mounts are machined with an exactness that is both strong yet ductile that allows our 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.Length: 7.50"Model: Alpha3Material: Aluminum with Titanium HardwarePieces: 1Mount Type: 1913 Picatinny RailRings Included: YesMount Height: 1.535"