Sig Sauer TANGO SPR, Rifle Scope, 4-16X Magnification, Second Focal Plane, MOA BDC 1 Reticle, 44mm Objective, 30mm Main Tube, Black, Includes ALPHA MSR 1.535 Mount SOTS44000 High performance meets affordability in the new TANGO-SPR (Special Purpose Rifle) lineup. Clear, rugged, and bright, the TANGO-SPR series is packed with premium features that keep you on-target, near or far. Each configuration comes with a factory-installed SPR Scope Mount for seamless integration with your favorite rifle, while the included flip-back caps keep your low dispersion lenses protected. Dedicated side focus, windage, and elevation dials ensure dependable precision with every round.