That's easy. It's black. Not everyone likes the color of the 19X. Some LEOs are allowed or have to buy there own sidearm and black is the most common color for handguns.@GunnyUSMC,
I did handle one the other day and was thoroughly confused as to why someone would choose a G45 over a G19, but to each his or her own.
I see the G45 filling the ranks of police departments in the next few years.