Sig Sauer Electro-Optics Tango-MSR 3-18x50mm is a high performance 6x optical system with low dispersion glass. Featuring an integrated thread in throw leaver for quick magnification changes, illuminated Millling MOA 2.0 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. | SIG SAUER Tango MSR MOA FFP 3-18x50 Riflescope