In 2004 the German company Heckler & Koch’s product catalog was released at an industry trade show. Unfortunately their photographer didn’t notice that their cartridges had been loaded backwards into the magazine.
This sparked a meme of sorts among HK enthusiasts where they would mimic the error stating that was infact the correct way for HK pistols.
Here’s two examples:
I didn’t see or feel much difference to the HK416 or G36 since it’s basically a hybrid of those two. It’s another gas-operated 5,56mm assault rifle with little to no recoil but it looks really cool.