No, but it should since the P-10C is finally on the ground, and some are making their way out into society as we speak.
Brinks...that's funny - I knew a bunch of Brinks guys back when I was doing armored work, (the screen name isn't an accident.
), and they were required to use company equipment, which at the time was a Smith Model 64 DAO with bobbed hammer. The first company I worked for required a 38Spl revolver with 158 gr widow maker ammo, hated that stuff, and the second was, "Hey, whatever you have that will work!" Carried my EAA Witness 40SW there for years - yes, that was pre CZ.
Brinks is a big outfit, but they are always behind the times with sidearms. On the other hand, I did see a Loomis guard one day carrying a Police Positive with a 6 inch barrel....