From an e-mail they sent me:
"Our midrange guns are Cyma, Well, and UTG. These guns are all of the
companies top of the line models offering very similar internals (i.e.
Metal Gearbox and gears, metal barrel, metal selector switch, and more)
as the other big airsoft brands ( ICS, Classic Army, Tokyo Marui etc.)."
What they don't say is that these similar internals are crap.