SIG SAUER ALPHA1 35 MM SCOPE RINGS: Our proprietary aluminum alloy ALPHA1 Hunting Rings are machined with an exactness that is both strong yet ductile that allows our rings to form around a scope, yet will not damage the scope under proper installation. The steel rings are epoxy powder coated to prevent oxidation and resist gun oils, cleaning solutions, and outdoor exposure. Sig Sauer hard-black-anodized, precision-machined, ALPHA Tactical Rings are crafted from aircraft-grade aluminum. Built with the same unique industrial design as our electro-optics, our rings, and mounts not only look tough, they are tough. MAIN FEATURES: - Aluminum 1913 rail rings; - Diameter: 35mm; - Available in various height options; - Sold as pair. Torq Specifications for Alpha Hunting Mounts To Rail (1/2"" SOCKET): 65in/lbs; To Scope (T15-TORX): 25in/lbs. SIG SAUER: SIG SAUER world-renowned guns are the guns of choice for many of the premier global military, law enforcement, and commercial users.