Nice write up cobblestone. In my opinion looks like a great carrier pouch for the Mk23 with a suppressor.
As far as practicality, is there a reason YOU personally would choose to carry such a lengthy pistol over a shorter PDW such as an MP5k? I get that there’s many factors here, such as suppressed vs unsuppressed, 45 vs 9, rifle vs pistol (1 hand vs 2 hands). I’m just curious what your reasoning would be in choosing the Mk23?