Sig Sauer Electro-Optics SOTM81000 Tango-MSR LPVO 1-8X24mm 30mm Tube Illuminated Red MSR BDC8 Reticle Features Throw Lever & Alpha-MSR Mount Sig Sauer Electro-Optics Tango-MSR LPVO Is a High Performance 8X Optical System With Low Dispersion Glass. Featuring An Integrated Thread In Throw Leaver For Quick Magnification changes, illuminated MSR BDC8 Reticle With 11 Brightness Levels And Is Waterproof, Shockproof And Fog Proof. Includes Lay Flat Flip Back Lens Covers And An Alpha-MSR 1 Piece Aluminum Cantilever Mount. Magnification: 1-8X Objective: 24mm Field Of View: 123.70 - 13.60 ft @ 100 yds Eye Relief: 95 - 100mm Tube Diameter: 30mm Length: 10.40" Weight: 18.60 Oz Reticle: Illuminated Red MSR BDC8 Proofs: Fog/Shock/Waterproof