Vortex Diamondback riflescopes completely change the rules when it comes to "you get what you pay for." First, the solid one-piece aircraft-grade aluminum alloy construction makes them virtually indestructible and highly resistant to magnum recoil. Argon purging puts waterproof and fogproof performance on the checklist and the advanced, fully multi-coated optics raise an eyebrow when crystal clear, tack-sharp images appear in the crosshairs. All this and that seems like it should cost so much more--but doesn't.