Semi-automatic civilian version of the M16A2 military rifle with 20-inch barrel, fixed stock, and A2 upper receiver; mirrors the primary U.S. military rifle of the 1980s-90s. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 1986, USA Weight: 8 oz Overall length: 39.5" Status: Discontinued Intended use: Sporting, Collecting, Service