Micro red dot sights for handguns - Optics Database
2019-3-26u2002·u2002Battery life. All of the micro reflex red dot sights on this list feature 'CR' batterries of varying sizes. CR indicates a coin-style 3-volt non-rechargeable lithium battery. CR batteries typically have a shelf life of 7 to 10 years. The numbers following the CR indicate dimensions: CR2032 is 20mm in diameter and 3.2mm thick.
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