Built-in sun shade for reduced glare and protection from rain and snow; The new centrally located focus ring allows for rapid focus and a more streamlined design; Adjustable eyecup to accommodate eyeglasses; Lightweight, durable design with a diecast magnesium body that is armored for even greater protection in the field; Angled eyepiece and rotating tripod mount make it easy to use whether you're standing or prone; ARCA-Swiss compatible tripod mount; M-LOK attachment points for accessories such as Red Dots or Range Finders; Waterproof, Shockproof, Fog Proof, Nitrogen-Filled