Help with BB selection

Hello, im wanting to replace my gritty and creaking BB, but I’m a little confused with the spec sheet available for a 2014 Rockhopper Comp. Specialized is calling the crank a “custom Samox 2-pc” and the BB a “73mm GXP for 2-pc”. I’ve got everything apart and the entire spindle is 24mm. Isn’t GXP supposed to have a 22mm journal on the non-drive side? It would appear that the Samox bb that I took out looks exactly like a standard Shimano BB MT501 24mm.

Is it a typo of Specialized’s end, or am I missing something? Do I just need a standard Hollowtech BB? Thanks!