VANTAGE 4×32 AO MIL DOT 11 layer fully multi-coated optics for excellent clarity Adjustable objective for parallax correction (AO models) 1 inch mono-tube chassis for superior strength ¼ MOA low profile no-snag fingertip turrets Fast focus eyebell and high torque zoom ring Threaded objective/ocular for optional accessories Chassis:1 Mono-tube Optical System:4× Objective:32mm Reticle:Mil Dot Illumination:N/A Focus/Parallax:Adjustable Objective - 9m / 10yds to Infinity Field of View: m @100m / ft @100yds9.5m / 28.5ft Eye relief:89mm / 3.5 Length:302mm / 11.9 Weight:370g / 13.1oz Waterproof, Shockproof, Nitrogen purged. All calibre rated.