The Mark 6 3-18x44mm sets a new standard for high performance in a small, lightweight package. with a length of just 12 inches and weighing in at 23.6oz, this optic sets the standard for high-end riflescopes and is 20% shorter and 20% lighter. In addition, the Mark 6 series offers state-of-the-art tactical features that are common throughout Leupold's Tactical product line. Hands down, the most commonly used phrase we hear from tactical end users is, "smaller, lighter, faster" when describing the perfect optic. Leupold Tactical Optics; They listened. And delivered.