POF's original short-stroke piston AR-15 with nitrocarburized internal surfaces and ambidextrous controls. Built for military operators wanting DI reliability with piston cleanliness. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2006, USA Weight: 105.6 oz Overall length: 35.5" Status: Active Intended use: Tactical