That would be the HCM PRO models, never had 1 though, so cannot
tell u the quality.... but most are smaller, like 1:144 scale for
the price of 1:100 *I tink*.
Another downer is that there's only a relative small amount of
gundams/models for HCM Pro, so not alot of choice...
Edit: My bad memory, i DO own 3 HCM Pro. A GM, RX-79[G]
& a RB-79K ball. Plastic's quality not bad, all panel
lines drawn liao... It's made of those type of plastic that's very
durable, but not very dust resistant. Limited joint movements,
too... Hopes this helps