Sig Sauer Alpha-MSR, Scope Mount, 30mm, 1.535 Height, 0 MOA, Anodized Finish, Coyote Brown, Fits Picatinny SOA20016 Sig Sauer's alloy ALPHA MSR Scope Mounts 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.