Interchangeable Optic System, Firehawk 1911 from Nighthawk Custom: SHOT '19

Gun Talk LIVE - Mark Stone and Nelson Davis of Nighthawk Custom shows off the new Interchangeable Optic System (IOS) that allows for quick and easy rear sight switching, and the Firehawk 1911, to Gun Talk's Tom Gresham. (Sponsored) #SHOTShow

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