I have. It is heavy, has a small bullet. You will find this one to be short too. These rifles including the M16 were designed to have short stocks. Now they put collapsing stocks on the M16s because people seem to think they are too tall and that the rifles were designed for dwarfs. WHere the real answer is that the rifles were designed for combat usage, which means that it is carried 99.9 percent of the time, and fired maybe .001 percent of the time. Also it has that terrible separate safety selector setup that is found on the vast majority of firearms. the mag release is also on the wrong side because you are supposed to place your empty mag back in its pouch and not drop it on the ground. And no the AK is not based on this design. Schmiesser worked(forced) at Izhmash untill 1951 or 52. Wait untill Kalashnikov is dead to read the full developement of the AK. All the little things like bolt hold open devices are not on this rifles because they are detrimental in combat situations.