I feel like this is basically a kitbash of those types of dolls from the same manufacturers of like GI-Joes or whatever - the helmet looks like a more modern cloth-covered type rather than a stahlhelm-type thing (this is probably why it's displayed from the top rather than the side), and it comes with a WW1-era Mauser with a shoulder stock. Someone at a factory somewhere looked at bins of spare bits and had an idea, I think.
I feel like this is basically a kitbash of those types of dolls from the same manufacturers of like GI-Joes or whatever - the helmet looks like a more modern cloth-covered type rather than a stahlhelm-type thing (this is probably why it's displayed from the top rather than the side), and it comes with a WW1-era Mauser with a shoulder stock. Someone at a factory somewhere looked at bins of spare bits and had an idea, I think.