Barska's Air Gun Scopes are the perfect optics for your CO2, pump, or break-barrel air gun. Each scope in this series features a Mil-Dot reticle, which is the standard reticle used by the US Army and Marine Corps and allows for long range distance calculations. A series of dots upon the cross hairs gives the shooter the ability to judge bullet drop and the proper hold over for accurate long range shot placement. An Adjustable Objective Lens (AO) allows the user to focus in on the target and adjust the settings to coincide with the distance to the target in yards. Fully coated optics come standard with this series, and provides a bright, clear image with less eyestrain to the user. Barska's Airgun Scope Series is ideal for competitive and recreational air gun shooting.