ULTRADOT 30MM RED DOT BLK GEN 2 Requested by many handgun hunters for its weight and durability, the Ultradot Gen 2 is now available in a 30mm tube size. This provides a larger field of view and more light. Only 133mm (5.2 inches) long and weighs just 130g (4.6 oz). 2 MOA dot size. Click adjustable brightness control. Available in Black Matte or Silver Satin Finish. This sight comes complete with a battery, polarizing filter, tube extension, mounting rings and hex wrench. Ultradot Gen 2 30mm Technical Specifications Tube Diameter: 30mm (1.2 inches) Windage/Elevation Adjustments: 1 MOA per click Dot Size: 2 MOA Dot Brightness Adjustment: 11 Settings / Click Field of View: Unlimited Length: 133mm (5.2) Inches Battery: 3v Lithium CR2032 Battery Life: User dependent Weight: 130g (4.6 oz) Parallax Free @ 50m (55 yards)