Similar to all ATN Aries scopes, the ATN MARS4x-CGT features only the purest grades of heavy glass and computer-aided optical designs to create multi-element, high-speed, multi-coated lenses for ultra-fast light transmission and resolution beyond current military standards. All optical lenses on the ATN MARS4x-CGT are individually fitted and calibrated to achieve optimum performance. It is waterproof with a storage range of -55 to +70 degrees C and operating range of -51 to 45 degrees C.
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