The Sig Sauer Electro-Optics Alpha3 Scope Mount (Sig part no. SOA30006) is a one-piece Picatinny-mounted ring and base built from a proprietary steel alloy engineered to be strong yet ductile enough to form around a riflescope’s tube without damaging it under proper installation. The steel rings carry an epoxy powder coat finish that resists oxidation, gun oils, cleaning solvents, and outdoor exposure. Set for 30mm tubes with 20 MOA of built-in elevation, the Alpha3 mount gives long-range shooters extra adjustment headroom that a flat base can’t provide, backed by Sig’s own machining tolerances. Browse other Sig Sauer Electro-Optics products we carry.

Key Specifications

• It’s built for a 30mm scope tube diameter.
• Mount height is 1.535 inches, a tall profile that clears large objective bells.
• It includes 20 MOA of built-in elevation for extended long-range adjustment.
• The mounting interface is a 1913 Picatinny rail, the industry standard for scope mounting.
• Overall length is 7.5 inches, giving generous eye-relief adjustment room.
• Construction is a proprietary steel alloy, strong yet ductile enough to form to the scope tube without damage.
• The finish is an epoxy powder coat that resists oxidation, gun oils, and solvents.

Frequently Asked Questions

What makes the Alpha3’s steel alloy different from a standard steel ring? Sig engineers the alloy to be strong yet ductile, so the rings can form around a riflescope tube during installation without damaging the scope’s finish.

Does this mount fit any Picatinny rail? Yes, it mounts to any standard 1913 Picatinny rail.

Why would I want 20 MOA of built-in elevation? It shifts a scope’s adjustment range toward the top end, giving more usable elevation travel for long-range shooting.

Buy the Sig Sauer Electro-Optics Alpha3 Scope Mount

Mount a 30mm long-range scope on a rail-tough enough to hold zero shot after shot. Order it from our Lubbock, Texas gun shop for fast, insured direct shipping. See the rest of our Scope Accessories & Scope Parts lineup while you’re at it.