The Sig Sauer Tango-MSR LPVO 1-10x28mm Riflescope is a high performance 10x optical scope with low dispersion glass and includes an ALPHA-MSR 1 piece aluminum cantilever mount. It has an integrated thread-in throw leaver for quick magnification changes. It includes the Illuminated MSR BDC-10 reticle with 11x brightness levels. Lay flat flip-back lens covers are also included. Dependable waterproof, shockproof, and fog-proof performance with awesome clarity!