At the SilencerCo booth, they have two holsters for the MAXIM 9. One looks and functions like a Blackhawk Serpa and they have a custom molded Kydex holster. These were made to dispel ideas that the Maxim 9 is too big to be holstered. AIWB holsters on the other hand might not work.
Also I spoke with Willie of SilencerCo and she told me that the Morse Code texture are SilencerCo slogans like “Fight The Noise” and other suppressor related phrases.