The GR4 G26 looks like in polymer.
I didn't see if the gearbox will add some new technology like for the Magpul masada gearbox. It's soooo easy now to change a spring and you don't need to open the gearbox.
YouTube - Magpul PTS Masada ACR quick spring change
Check at 1:40 min...
Anyway, really good news
