Our best competition riflescope ever, the XTR Pro raises the bar for PRS and NRL style competition shooting. Outpace the competition with exclusive features including the Burris Quick Detach Race Dial and new Tool-less Zero Click Stop Elevation Knob. Features a Horus TREMOR5 reticle with 11 red/11 green illuminations; 1/10 Mil click value; Objective lens diameter of 63.5mm ; Ocular lens diameter of 44.25mm; Burrid Race dial and throw lever. Designed and manufactured in Greeley, Colorado. Length 15.40" Proofs Fog/Waterproof Series Pro Weight 33.60 oz Reticle Illuminated Horus TREMOR5 Objective 56mm Field Of View 23 - 4.20 ft @ 100 yds Magnification 5.5-30x Tube Diameter 34mm Parallax Adjustment 20 yds-Infinity