Back by popular demand with a twist! The latest generation of the Ultradot 4 provides the most popular dot sizes 248 and 10. Being a 25mm (1) tube provides quick acquisition of your target without the distraction of your neighbor's targets on the line. Available in black matte finish with the following accessories: Mounting Rings Bungee Lens Covers Tube Extension Hex Wrench Polarizing Filter and Battery. - Ultradot 4 Technical Specifications - Tube Diameter: 25mm (1 inch) - Field of View: Unlimited - Dot Size: 2 4 8 and 10 MOA - Length: 148mm (5.83 Inches) - Battery: 3v Lithium CR2032 - Battery Life: User dependent - Weight: 138g (4.87oz) - Width: 55mm - W/A Elevation: 1 MOA per Click - Max Reticle Movement: + or -23 Feet - Center Housing Length: 57mm