The 11-inch HK416 A5 is the ultra-compact military configuration used by special operations units where the 14.5-inch barrel is too long for the operational environment. The short barrel reduces muzzle velocity to approximately 2,400 fps but the piston system functions reliably at this length where direct-impingement designs often fail. Available in US as an SBR or pistol configuration only. Widely used by European special operations and close-protection units. Type: Rifle Action: Semi-Automatic Caliber: 5.56x45mm Capacity: 30 Year introduced: 2014, Germany Weight: 78 oz Overall length: 29.5" Status: Active Military use: Yes Intended use: military, special_operations, cqb