Compared to some attempts I've seen, it's pretty clever... no wasted effort, just function... but, with nothing to stop it from going too far into the pistol, damage is pretty likely on the rear spine at the top... sooner or later.. BTW, I'd love to buy that mag shell from you, even in tough shape it would be a real treat for me.. I just like mags!!
... Best to all, til..lat'r...GT