PWS MK216 in .308 Win with 18-inch chrome-lined barrel and long-stroke piston system. The MK216 designation indicates the modular pattern lower receiver with enhanced features over the standard MK109, including improved trigger guard and extended Picatinny rail. Type: Rifle Action: Semi-Automatic Caliber: .308 Win Capacity: 20 Year introduced: 2013, USA Weight: 134 oz Overall length: 37.75" Status: Active Intended use: Precision Shooting, Tactical, Hunting