The MCX Virtus in 11.5-inch configuration is sold as a pistol or SBR depending on registration. The shortened barrel retains the short-stroke gas piston reliability of the Virtus platform in a more compact form factor for close-quarters use. Type: Semi-Auto Rifle Action: SA Caliber: 5.56 NATO Capacity: 30 Year introduced: 2018, USA Weight: 85 oz Overall length: 30" Status: Active Intended use: Tactical, Collector