This Chester County Armory listing is a chance to own a true piece of American history! This is an unfired, US Property marked Colt M16A1 in its factory configuration, serial number 5,000,000! It was originally housed in the Colt Official Archives. This is a true A1 configured gun, just as it rolled out of the factory for delivery to the US military! Featuring the triangular hand guard and the original pencil style 20" barrel. This collectible machine gun is in superb, museum-quality, unfired condition, and is fully transferable. For more information on this listing or to view our other NFA and investment grade firearms, please visit our website at www.chestercountyarmory.com, or contact us via the information listed below. Chester County Armory West Chester, PA email: [email protected] phone: 610-235-6155 www.chestercountyarmory.com