I have been arguing with people on Uzi forums. In 1985 I bought an open bolt uzi semi auto only from a gun dealer. The trigger group had no setting for full auto and it was designed for open bolt only fire. It was not cobbled together and I knew at the time several from the gun club who had one or had had one. Mine came with a 16 inch barrel and a fake short barrel. I remember it would not be that easy for a person to convert. Not any more than an AR15. At the time I bought it I also at a gun show picked up a video VHS of SWD doing a video on how easy it was to convert everything from a Grand to Ruger 1022 to full auto. They did this for court when they fought and lost to ATF on the open bolt issue. I still have the VHS original tape and have since converted it to digital. Never downloaded it because I did not need any attention on me about videos on how to convert guns. They converted AR15s in several way to full auto.