haha, getting into the business was a joke, I don't deal in that kinda stuff lol, not that I wouldn't like to if had the aptitude, but, I guess my confusion come from never really handling one of the marks for more than to look at in a gun store, see, i was under the impression that ruger used the same system as the nambu, well because that's what he made first was his own nambu, then instead of marketing it he reinvented and made the mk series, with the nambu and luger, it isn't lock breach or blowback, it is some of the elements of each, the nambu being simpler and surely more easily maintained but similar in looks and grip feel, I figured that design would be more the one I would like. the luger take the pressure of a nine ...as it should so, I would think the very similar mechanism of the nambu would be capable of the same......anywho.....lol....I still want one, and perhaps less elegant, but....so are battleships, you can still say they are beautiful, and....functional, two things I like in a gun.