G&G Armament Close Quarters Defense (CQD) released. It is made of aluminium, Nylon, Fiber, Steel, Zinc ,and Plastic with an inner barrel length of 168mm. What we have noticed is that this comes with the US Airborne Markings (might be released with several markings in the future) and has a Ball Bearing spring guide. It comes with a cranestock which can be for battery installation and a 450-round magazine.