The Noveske N4 PDW is a short-barreled AR-pistol with a 10.5-inch barrel built to Noveske's stringent tolerances and quality standards. It is used as a reference-grade upper receiver assembly by many professional users who need a compact 5.56x45mm platform. Type: Pistol Action: Direct Impingement Caliber: 5.56x45mm Capacity: 30 Year introduced: 2008, USA Weight: 6 oz Overall length: 21.5" Status: Active Intended use: Military, Home Defense, Duty