This has been discussed in another thread, you might be able to find some useful info there.
My two cents:  Glock 27, LEO version.
Using CCI ammo, I have no worries.
Using the Remington Golden Bullets I get a lot of practice on malfunction drills.  I choose to think of this situation as built-in 'ball and dummy' drill.   
 
 
Has anyone put aftermarket sights on their AA slide?  I was thinking of swapping in XS Express sights for consistency.  It's supposed to work, but I'd be interested to hear objective confirmation.
David