Weaver"s Tactical scope is serious glass for serious situations. Weaver Tactical Scopes feature first focal plane reticles this configuration reduces subtension at low-power magnification while increasing the precision of range finding and EBX™ ballistic reticles at all magnifications. First focal plane also mean no point-of-aim/point-of-impact shift as you move through the scopes magnification range. Fully multi-coated lenses w/extra hard coating on exterior lenses. As part of the Super Slam Series the Tactical 3-15 x 50mm Rifle Scope with 30mm tubes and Mil Dot reticles are manufactured to the strictest tolerances in order to perform in the harshest environments.