I would not bother changing it over, I just use my trigger or middle finger to depress the mag release. I even have the mag release ground down quite a bit because in my pocket holster it tends to accidentally release otherwise. I actually prefer a heel clip release, it is truly ambidextrous and I am not usually that concerned about lightning fast reloads if I am down to the keltec. Otherwise everything else about the p32 is fairly lefty/righty neutral. They even offer their belt clip for either side.