The SIG SAUER WHISKEY4 Exposed Zero Stop Rifle Scope gives hunters a rugged variable-power rifle scope designed to perform season after season. A removable magnification throw lever and LockDown Zero System with zero-stop elevation turret provide quick, intuitive adjustments, meaning this SIG SAUER scope removes guesswork when the adrenaline spikes. Tactile 1/4-MOA adjustment provides precise sighting. Delivering a crystal-clear image through the entire 520X magnification range, the WHISKEY4 includes a front focal plane configuration with MOA Milling Hunter 2.0 reticle. The argon-purged lenses provide waterproof, fogproof performance, plus the WHISKEY4 rifle scope comes with factory-installed flip-back lens covers that maintain accessibility while keeping the scope protected. Mfrs. Infinite Guarantee. Removable magnification throw lever LockDown Zero System means you can quickly, reliably return to zero Crystal-clear image through entire 520X magnification range Precise 1/4-MOA adjustments Front focal plane configuration MOA Milling Hunter 2.0 reticle Argon purged for waterproof, fogproof performance Includes flip-back lens covers installed