The Primary Arms Mil/Mil 4-14x Front Focal Plane Orion features the patented ACSS Orion reticle that stays true through the scope's entire magnification range of 4x through 14x. The Orion features quick ranging and wind holds calibrated for deer and coyote sized targets using .308, .223, and .30-06 chambered rifles. No math needed, no digging through the data book. A side mounted parallax adjust knob keeps the reticle parallax free and the target image sharp at extended ranges. This tough scope is shockproof, waterproof, and fog resistant, and comes with a 3 year warranty.