Robinson XCR-M — large-frame version of the XCR in 7.62x51mm NATO. Short-stroke piston with folding stock; quick-change barrel system allows caliber swaps. Rugged American-made battle rifle competing with SCAR 17 in the multi-caliber space. Type: Rifle Action: Semi-Automatic Caliber: .308 Winchester Capacity: 20 Year introduced: 2009, USA Weight: 104 oz Overall length: 43.5" Status: Active Intended use: sport, hunting, self_defense