I thought Cyma and cybergun were the same company.
There are different grades in Cyma.
My Chicago 1928 Cyma thompson, metal and fake wood is great, shoots 360fps. Has not failed yet. I have used intensely for 1 year and it has not failed me yet.
The Canadian tire thompson is transparent plastic and shoots around 220 fps with .20g. I painted mine. I use it indoors for CQB and love it. I would not use it outdoors for obvious reasons.