This Sightron SII 36x42 scope comes with a number of features that make it ideal for target shooting. It has target turrets that provide positive audible click adjustments offered in 1/8 MOA adjustments. The turret is resettable to zero and protected by a durable cap. A 720 degree adjustable objective is standard on all SII target series models. This scope utilizes the Exac Track, which is a windage and elevation system unique to Sightron that delivers uncompromising performance. It is multi-coated on both surfaces of its precision ground glass to provide better optical quality and light transmission. It is waterproofed against rain, snow, humidity and is built to withstand the shock of the toughest loads. Lastly the nitrogen gas charged internals prevent fogging or any internal water buildup.