UltraDo Red Dot Sights are the Original Straight Profile Red Dot Sights

The Ultradot red dot sight was the first Red Dot Sight designed with flat batteries and low profile (or straight profile). Ultra Dots come in one inch and 30 mm tubes that fit standard rings. And, a polarizing filter is included with ultradots. Superb quality and clarity of the dot image along with magnum recoil durability. You will pay a little more for an UltraDot but you will not be sorry you bought an UltraDot Red Dot Sight.