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Sightmark .223 Remington/5.56 NATO Boresight Boresighter – Black
Sightmark Sightmark .2235.56×45 NATO BoresightBlackIncludes 2X AG5 BatteriesFeatures:Precision accuracyReliable and durableFastest gun zeroing and sighting systemReduce wasted cartridges and shellsCompact and lightweightEasy to pack and travelLimited Lifetime Warranty