The AR-15A3 introduced the flat-top upper receiver to Colt's civilian line, replacing the fixed carry handle with a Picatinny rail. The 16-inch barrel made it compliant with the 1994 Assault Weapons Ban feature restrictions. Became a template for modern AR-15s. Type: Semi-Auto Rifle Action: Gas-Operated Caliber: 5.56x45mm Capacity: 30 Year introduced: 1994, USA Weight: 7.1 oz Overall length: 32.5" Status: Active Intended use: Home Defense, Range, Patrol