POF P416 with 16-inch barrel and POF's original short-stroke piston system. One of POF's early piston AR-15 offerings that established the company. Type: Semi-Auto Rifle Action: Semi-Automatic Caliber: 5.56x45mm Capacity: 30 Year introduced: 2008, USA Weight: 70 oz Overall length: 33" Status: Active Intended use: Military/Duty