The HK416 is a short-stroke gas piston variant of the AR-15/M16 platform, designed by HK in collaboration with Delta Force operators who wanted the reliability of a piston system in an AR-15 ergonomic package. Adopted by Norway as their standard service rifle, selected as the German Bundeswehr G95K, and used by the Navy SEAL team that conducted the bin Laden raid. Type: Rifle Action: Semi-Automatic/Full-Auto Caliber: 5.56x45mm NATO Capacity: 30 Year introduced: 2005, Germany Weight: 6.8 oz Overall length: 33.5" Status: Active Military use: Yes Intended use: Military