The PWS MK216 is a 16-inch long-stroke piston .308 carbine, the most compact configuration in PWS's MK200 series. The piston system provides reliable operation with the .308 cartridge at the shorter barrel length where DI .308 ARs often experience reliability issues. The MK216 is particularly valued for patrol and entry roles where .308 energy is required in a more compact package. Type: Pistol Action: Semi-Automatic Caliber: 308 Winchester Capacity: 20 Year introduced: 2016, USA Weight: 112 oz Overall length: 36.5" Status: Active Intended use: Patrol Rifle, Duty Use, Home Defense