Sig Sauer Tango MSR, Rifle Scope, 3-18X50mm, First Focal Plane, MRAD Illuminated Milling 2.0 Reticle, 50mm Objective, 34mm Main Tube, Matte Finish, Black, 0.1 MRAD Adjustment, Included Mount and Flip Lens Covers SOTM63001 Expanding SIG's extensive line of tactical riflescopes to include high-magnification options, the TANGO-MSR offers great value for recreational shooters. Featuring a first focal plane reticle, 34mm maintube, and included ALPHA-MSR aluminum scope mount, shooters can enjoy all the benefits of this high-magnification optic without overspending.