The PWS MK114 is a 14-inch short-barreled piston AR in the MK116 family. The long-stroke piston system provides reliable operation at the 14-inch barrel length where DI gas timing becomes more challenging. Used by some law enforcement agencies as an SBR or pistol-configuration entry tool. The FSC556 muzzle device manages blast and recoil at this length. Type: Pistol Action: Semi-Automatic Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2013, USA Weight: 68 oz Overall length: 28.5" Status: Active Intended use: Duty Use, Home Defense, Suppressor Host