Swarovski Z3 4-12x50mm Rifle Scope - The Z3 4-12x50 is a 1-inch rifle scope that proves its strength in poor light conditions and over longer distances thanks to its 50 mm objective lens diameter and 12x magnification. Even in the 1-inch class you don't need to go without backup lighting and higher magnification. The Z3 4-12x50 BT L is designed to cope with these values - even with an incredibly lightweight design. The ballistic turret can be separately adjusted to your personal requirements, allowing you to stay on target at different distances.