The gas blowback SMG that made the GHK airsoft a big radar blip in the airsoft gas blowback segement, the G5 GBB, gets reviewed by Josef Mucha. Will it still be a good GBB when there are newer ones in the market? Find out in the video... "The GHK G5 is great, and I love it. The only thing it's missing is adjustable power output."