@HubertManne Nazi Germany tried it with a version of the MP 40, didn’t work due to putting too much weight towards the front and the mechanism constantly jamming.
What what you can find in the modern era are shotguns with multiple tube mags, although that’s more for being able to have a mixture of shot and slugs. On a similar line is the STK 50MG which takes two belts, again to allow quick switching between standard and armour-piercing rounds. There’s also dual purpose weapons like the Ares Shrike which can be used as either a mag fed rifle or belt fed machine gun.
@HubertManne Nazi Germany tried it with a version of the MP 40, didn’t work due to putting too much weight towards the front and the mechanism constantly jamming.
What what you can find in the modern era are shotguns with multiple tube mags, although that’s more for being able to have a mixture of shot and slugs. On a similar line is the STK 50MG which takes two belts, again to allow quick switching between standard and armour-piercing rounds. There’s also dual purpose weapons like the Ares Shrike which can be used as either a mag fed rifle or belt fed machine gun.