Lets pay some attention to this new SIG-style airsoft rifle, a GBB rifle GHK will be delivering a 553 GBB and Marck West of RedWolf Airsoft is happy to give you a sneak preview of it. This item will be at IWA 2018 and we will certainly bring Redwolf Airsoft a visit. It comes with a flip-up front and rear sight, the folding stock is stiff and solid. And the best part, the 3-round burst The overall gas consumption seems to be very efficient.