SPECS: 3-12 magnification with a 42mm lens diameter, aerospace grade 30mm tube and weighs 19.4 oz - FOV Range: 37.3 ft Min - 9.5 ft Max ACCURACY: Features a second focal plane, non-illuminated, CT Custom BDC Pro reticle with a 4" eye relief, 1/4" click value, parallax adjustment (target focus - left side) and quick spring-loaded zero reset capped turrets EASE OF USE: Windage (right side), elevation (top) knobs are capped and can be easily unscrewed and adjusted when sighting in at the range by turning with your fingers (no tool required)