Well, i have the 30 and the 36. I have the bad luck of getting the 36 long before it was available in the United States. For that, i have the old magazines, that weren't reliables at all. I t was near sure, that when i put five bulletes in it, the first round never go into battery. And sometimes, also with the six rounds. I recently aquired one of the new ones, and reliability improves dramatically. The older ones have an open front. I recently read an article from Ed Sanow, where he said that the delay in the U.S. availability for the pistol, was due to the need of redesign the magazines. And they did it well. Besides this, the pistol perfoms very well, at least in rapid fire, with more recoil than the 30 with faster bullets and is a joy to carry. The only other flaw i encounter, apart form the bad magazines, is the somehow heavy trigger. It is, at least in mine, different from the other Glocks i have.