The original HK416 is an assault rifle designed and manufactured by Heckler & Koch. It uses the AR-15 platform, originally conceived as an improvement to the Colt M4 carbine family issued to the U.S. military. The Jing Gong / Golden Eagle HK416 has short type flash hider and barrel. The quadrail allows to attach lots of accessories such as foregrip, scope, reddot, etc. It comes with an 300 rounds magazine, an 9.6V 1200mAh power source and a charger.