Well, I finally got my grubby mits on a G19.5 MOS without ransoming any vital organs. Seems like aftermarket plates are preferred over the OEM MOS plates, but what's the current "ideal" setup? Is there combination of plate/optic/irons that's the best way to get a bare minimum usable back up irons without looking over the top scale models of the Great Wall and Red October conning tower sticking up and blocking half my optic window?