The HK416 A5 10.4-inch is the compact SBR variant of the A5 generation, featuring the shortest available barrel length on the A5 platform while retaining the piston-driven system that manages carbon fouling better than DI equivalents. Type: Semi-Auto Rifle Action: Gas-Operated Caliber: 5.56x45mm Capacity: 30 Year introduced: 2016, Germany Weight: 7.25 oz Overall length: 29" Status: Active Military use: Yes Intended use: Military, Special Operations, NFA/SBR