Sig Sauer Tango MSR LPVO 1-10x 28mm Rifle Scope - BDC-10 - High Performance 10x optical system with low dispersion glass. Integrated thread in throw leaver for quick magnification changes. Illuminated MSR BDC-10 reticle with 11x brightness levels. Lay flat flip back lens covers included Dependable waterproof, shockproof and fog proof performance Includes aluminum 34mm ALPHA-MSR cantilever mount