SIG SAUER - Alpha Scope Ring 30mm Alum SIG Tactical Complete Set BLK - SKU: SOA10001Product Description:Our aluminum Alpha Tactical rings are machined from aircraft grade 6061-T6 aluminum, precision machined and Type 2 black anodized. Designed with the same unique industrial design as our electro-optics, our ring mounts not only look tough, but are tough. Tactical ALPHA mounts feature aluminum 2-piece cantilever design with HeliCoils for locking your TANGO down with confidence 1-piece Tactical ALPHA aluminum cantilever mount with 20 MOA built-in for long-range shooting