According to Kui, the GHK HK416A5 GBB was sold out quickly when it went on sale at their store and here is a video they took unboxing this licensed gas blowback rifle. The GHK HK416A5 GBB airsoft deluxe version is an officially licensed H&K replica designed for superior performance and durability. It features a full steel fire control group and a one-piece steel outer barrel for a solid, wobble-free feel, while the CERAKOTE finish on the receiver provides both style and protection. The rifle also includes an M-LOK handguard for easy accessory mounting and a patented quick-adjust hop-up system for enhanced accuracy. It comes with the latest HK-style nylon magazine and is compatible with all GHK AR series magazines.