Full Multi-layer coatings on all glass coatings. Optical system. Speed force, illuminated reticle. Glass-etched, illuminated reticles; is located in second focal planeside-mounted illumination control. features (10) intensity settings and powers down after (1) hour. multiple layers of anti-reflective coating. True 1x magnification and 4x zoom. generous, consistent Eye relief. Quick focus eyepiece.30mm main body tube. Constructed of aircraft aluminum. Waterproof, fog proof and shockproof construction. Capped wind age and elevation; turrets. Spring-loaded instant-zero reset turrets. Black cantilever mounts. Matte illuminated reticle. Field of view @ 100 yards in feet: 27.2'-110.1'. Length: 10.5". Weight: 16.4 oz.