left: Ltd-Ed 4" 646 (what's wrong with the grip? )
top: 5" 629
middle: 4" 686
bottom: 3" 60
Despte the 646 being a relatively new revolver, only the 60 has the klinton-lock. (that was probably a different deal, but it's just easier for me to blame everything on bubba) Also, all guns are round-butt and all but the 60 have round-to-square conversion grips. Also, all but the 646 have adjustable rear sights and hi-viz (green) front.
It's no wonder kerry, edwards, mccain, & feinstein want to get their grubby little digits on these babies.
Gotta go now ... time to tuck my little angels in for the night.