The MCX Spear is the civilian variant of the US Army's XM5 Next Generation Squad Weapon, chambered in 6.8x51mm with a 13-inch barrel and folding stock in SBR configuration. Type: Semi-Auto Rifle Action: Gas-Operated Caliber: 6.8x51mm Capacity: 20 Year introduced: 2023, USA Weight: 9.84 oz Overall length: 30" Status: Active Military use: Yes Intended use: Military, Tactical, NFA/SBR