The 4-12x50 AO Crossfire II Riflescope (Dead-Hold BDC) from Vortex Optics is a cost-effective yet durable variable power riflescope. The 4-12x magnification is ideal for close to mid-range hunting and target practice. A nitrogen purged and o-ring sealed aluminum housing is built to perform in driving rain and extreme humidity. This model of the Crossfire II is configured with a Dead-Hold BDC reticle and low-profile capped windage/elevation turrets. The wide 50mm objective lens features enhanced light gathering ability that is well-suited for performance in low light conditions. An included sunshade prevents stray light that can degrade image quality from entering the field of view. A fast focus eyepiece, parallax error correction, and generous eye relief make the Crossfire II a full-featured scope for sportsmen.