This one is made by Legends. I know there is one made by "WE". There is a non blow back version that shoots over 400 fps, the blowback robs some of the power so it's only around 350 fps. I see Umarexusa makes the Legends. This website looks to offer the best price I have seen on one. They even have a WW2 version with weathered bluing.
https://www.pyramydair.com/s/m/Legen...ull_Metal/3485