High precision long range optical systems. 18 layer fully multi-coated optics for superior clarity. Side focus control for parallax adjustment to infinity. 30mm mono-tube chassis for superior strength. Glass etched reticle with red and green illumination. Rheostat on saddle offers 5 levels of brightness. ¹⁄4 MOA exposed, locking and resettable turrets. Locking ocular and high torque zoom ring