Licensed Colt M4 .22 LR replica with a 16-inch barrel and full M4 furniture including a flat-top upper, collapsible stock, and quad-rail handguard. Uses Umarex's rotating bolt rimfire system. Type: Rifle Action: Semi-Automatic Caliber: .22 LR Capacity: 10 Year introduced: 2010, Germany Weight: 6.3 oz Overall length: 35" Status: Active Intended use: AR Training,Military Training