HK sporting rimfire rifle in .22 Winchester Magnum Rimfire with a 19.7-inch barrel, applying HK engineering to the plinking and small-game market. Type: Rifle Action: Semi-Automatic Caliber: .22 WMR Capacity: 5 Year introduced: 1977, Germany Weight: 60.8 oz Overall length: 40" Status: Discontinued Intended use: Sporting/Plinking