The Argos BTR scopes have features normally only found on high-end scopes. It has a 4x magnification that makes it versatile in multiple shooting disciplines. It has Athlon's Advanced Fully-Multi Coated Optics that delivers a crystal clear bright image in in dark environments. The Argos BTR also has their exclusive XPL coating that protects your lenses from dirt, grease, and harsh weather conditions. The 6061-T6 aircraft grade aluminum tube will protect these world class optics no matter what punishment you throw at it. This scope has a Side Parallax Adjustment to give you the ability to adjust to any ranged right at your fingertips. This along with the variety of first focal plane reticles give you easy elevation and windage adjustments. This Argos BTR 8-34x56 Model has APMR first focal plane illuminated Mil reticle.