PWS MK220 in 6.5 Creedmoor with 18-inch chrome-lined barrel and long-stroke piston system. PWS's AR-10 platform in 6.5 Creedmoor combines the reliability of piston operation with the ballistic advantage of 6.5mm for precision hunting and competition use. Modular lower receiver with enhanced trigger guard. Type: Rifle Action: Semi-Automatic Caliber: 6.5 Creedmoor Capacity: 20 Year introduced: 2018, USA Weight: 132 oz Overall length: 37.75" Status: Active Intended use: Precision Shooting, Competition, Hunting