Armasight® MCS Miniature Collimating Sight for fast \"both eyes open\" targeting!Slightly, gently, lovingly used.....and by used I mean mounted on weapon for display, but weapon never fired while attached. Like-new condition.Add lightning-quick \"reflex\" sighting and 2 illuminated reticle targeting options to your favorite rifle! The MCS is designed to significantly improve accuracy and efficiency of virtually any weapon, from handguns to assault rifles and submachine guns. The compact size and versatility makes it an ideal backup sight.\'Even better, it\'s the only Sight in its class that features a dual reticle pattern: 3.5 MOA dot or 20 MOA ring reticle pattern. The brightness is controlled automatically to match light conditions, so you can focus on your target.100% waterproof, tested against salt, fog, dust, vibration, drop-tested, and fired on a variety of firearms for thousands of rounds... the MCS is built like a tank and ready to serve for the long haul.Here\'s more:Mounts to any MIL-STD 1913, Picatinny or Weaver rail. Two reticle options: 3.5 MOA dot or 20 MOA ring reticle pattern. Automatic brightness control based on existing light conditions, no adjustments needed (you can override the brightness control for maximum brightness). Parallax-free, with large heads-up display and wide field of view. 100% waterproof and submersible to 33 ft. of water, also salt, fog, dust, and vibration-resistant. 1.2 MOA / click adjustments for windage and 1.5 MOA / click adjustments for elevation. Environmental rating: MIL-STD-810G standard. User-configurable open of tube sight mode. True night vision compatible mode. Easy push-button controls for reticle switching, brightness control override, night vision mode, and on / off. Works on a single, easy-to-replace CR2032 3V battery (not included). Changing battery will not reset zero Measures 1.9 x 1.6 x 1.9\"h.

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