If I am allowed as a very new member...
I worked at the above mentioned show Future Soldier in Prague as a deputy armorer of the show, basically checking all exhibits from the safety POV, including the CZ stand. I also had a quite lengthy conversation about this rifle with the head of the exhibition and handled the rifle.
The CZ designers, as they said "watch FN SCAR" very closely as their main competition. The internal mechanism resembles a G36, short-stroke piston and rotating bolt (nothing new even for the G36). The BC group slides in a plastic body.
The rifle was presented with a "G36 mag well" module, but the modules are very easily exchangeable, currently there are NATO/M16 modules, G36 modules and others are designed, including AK and something for 7.62 NATO and 6.8 REM. The idea behind it is that Czech Army, operating in NATO Mission around the world, can use a module allowing the soldiers to use magazines of the same type as their allies in place, i.e. G36 when operating along Germans, NATO/M16 mags when operating with US forces etc. I proposed a mag-well module allowing the use of Vz. 58 magazines to allow use of the stock of mags and ammo for training, the gentlemen said nothing but exchanged some looks...
The optics attached to the exhibit was a mock-up for presentation only! It is not an actual optic.
The conversion of the rifle in terms of calibers, barrel exchange or conversion from carbine to sniper etc. can and is intended to be done by the OPERATOR, not an armorer, with basic tools in a short time.
The entire rifle is designed with max utilization of plastic. Overall I must say the rifle is nice to handle. I had a chance to play, I mean inspect, of course, the full length rifle, carbine and ultra-short variant, plus the new incarnation of Scorpion SMG in 9 Luger.
So, now I want it in semi-auto!