Ultradot 4 Red Dot Sight 2 4 8 10 MOA Dot Sizes Black 25mm Ultradot. Water resistant shock proof fog proof and gas filled. 25mm tube click adjustable brightness and 248 & 10 MOA. Specifications for Ultradot 4 Red Dot Sight: Manufacturer: Ultradot Color: Black Finish: Black Matte Reticle: 2 MOA 4 MOA 8 MOA 10 MOA Adjustment Type: MOA Adjustment Click Value: 1 MOA Emitter Type: Enclosed Battery Type: CR2032 Battery Quantity: 1 Weather Resistance: Fog Resistant Water Resistance Level: Water Resistant Shockproof: Yes Fogproof: Yes Length: 5.83 in Width: 55 mm Height: 57 mm Weight: 4.87 oz Package Type: Box Quantity: 1 Tube Diameter: 1 in Switch Type: Click Red Dot Sights-Footprint: Not Applicable Features of Ultradot 4 Red Dot Sight Dot Size: 2 4 8 and 10 MOA; Battery Life: User dependent. Max Reticle Movement: + or 23 Feet Center Housing Length: 57mm Package Contents: Ultradot 4 Red Dot Sight Mounting Rings Bungee Lens Covers Tube Extension Hex Wrench Polarizing Filter Battery. Ultradot Ultradot 4: 4 Red Dot Sight 2 4 8 10 MOA Dot Sizes Black 25mm