CC, yeah, O.K., I can get picky. The MP5 is what the Bundeswehr labeled it. (Quick, class, what was the MP1?).
The GSCs who claim to own a dozen or so "MP5s" have either stolen them from the German Army, own HK54s by paying SOTs (tricky), or have sear guns with a 4. BTW, a sear gun is not the same as the HK54 durability wise.
Small potatos I know, but what do you want to talk about--the office???