Very interesting video, so from what we can see, HK style cocking system, bolt carrier looks very AK, so can we assume they moved the fixed cocking handle from the bolt carrier and attached it to some sort of disconnecter on the piston body so it no longer reciprocates with the action?

Or have they pushed the boat right out, re-invented the wheel and melded together some sort of HK roller delay / AK back end contraption!

All looking hugely unnecessary, haven't they got better things to be wasting money on?