The M2 mag release spring was updated.
That's goodness. It means that the PPS M2 may have nothing for me to object to, and that when I get my hand around that redone ergonomically improved grip I will not be able to let it go, and will have to reach for my wallet with my other hand and buy it.
Seriously, it will be a bit tough to resist the PPS M2.
Bart Noir