The POF P415 is a short-stroke piston AR-15 featuring POF's E2 extractor upgrade, NP3 coated bolt carrier group, and Dictator adjustable gas block. The 16-inch barrel and piston operation provide reliable function in adverse conditions, targeting the duty and military markets. Type: Semi-Auto Rifle Action: Short Stroke Piston Caliber: 5.56x45mm Capacity: 30 Year introduced: 2006, USA Weight: 7.5 oz Overall length: 32.5" Status: Active Intended use: Duty, Range, Military