[The Colonel]

Originally Posted by copeab

Unlike normal combination guns, the rifle is not a single-shot breech-loader. It's a bit like the concept of the M16 with an underbarrel 12g, but for hunting.


https://www.forgottenweapons.com/a-u...mbination-gun/

Ah, right ... I'm guessing that's probably one of the earliest examples of the type then, albeit not an actual ancestor of anything alive today. Makes me wonder why the combination gun failed to evolve like that actually...