The zenith ZF 56 and zf 39. Someone mentioned this Firearms here at CANADIAN GUN NUTS earlier. I like the idea of putting G3 and HK 33 in a modern aluminum body on hand. They are kind of bulky and big compared to AR. The recoil is soft, but both 556 and 76 2 x 39 that I shot couldn’t finish a single magazine without malfunction aka failure to feed. I like the idea, but I do not think they got the system completely ironed out.