I used to own an airsoft store and have done repairs and upgrades since 2004. I also put a brand new EG1000 motor in it, G&G stock motors are not so good. You'll find some ugly screws sticking out of the selector switches, but they are on firmly.
One finger operation to go from safe to semi and then to full, but it sticks the otherway. To go from full to safe semi and safe you have to push both sides selector switches simultaneously.I chrono'd it at 345 with. 25s, that would be about 380 with. I lost the original mag so I'm throwing in a short standard and a short hicap.
It's pretty much all metal with plastic hand guards and rear stock. I tested it and it shoots straight looking through the iron sight. Does not come with a battery.
The item "G&G GS550 SIG style airsoft toy metal, high quality, upgraded" is in sale since Sunday, April 19, 2020. This item is in the category "Sporting Goods\Outdoor Sports\Airsoft\Guns\Electric\Rifle".
The seller is "extenderpilot" and is located in Mount Holly, New Jersey. This item can be shipped to United States.