The BuckMaster is full of unbeatable features like Brightvue™ multicoating for 92% light transmission and large exit pupils for early morning and late afternoon hunts. Long Range models feature a side focus adjustment for parallax-free sighting. Precise ¼" or 1⁄8" MOA audible windage and elevation adjustments. The Quick Focus Eyepiece brings the reticle into sharp focus fast. The BDC riflescopes have four ballistic circles for aiming points for ranging as far out as 600 yards.