The MR223 is the European civilian market version of the HK416/MR556, marketed in Germany and other European nations where the MR556 designation was not used. Functionally identical to the MR556A1 with the same short-stroke piston system and cold-hammer-forged 16.5-inch barrel. European production and compliance specifications differ slightly from the US MR556A1. Discontinued in favor of unified MR556 branding. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm Capacity: 30 Year introduced: 2008, Germany Weight: 84 oz Overall length: 35.2" Status: Discontinued Intended use: sporting, European_market