Sig Sauer Alpha2 34mm 1.535in Rifle/MSR Mount - Coyote Brown - Sig Sauer proprietary steel alloy ALPHA2 Scope Mounts are machined with an exactness that is both strong yet ductile that allows the 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 1913 style clamps Covered by SIG SAUER's Infinite Guarantee; Torq specifications for Alpha 2 Scope Mounts:; To Rail (1/2in Nut): 65in/lbs; To Scope (T15-TORX): 25in/lbs; Attachment type: M1913; 7075-T6 Alloy Aluminum;