lol

The game is full of this kind of thing. The Mortini is a Lewis machine gun with no barrel that fires proximity shrapnel bombs out of it's cooling jacket, the Tromblonj is a muzzle loading blunderbuss that's also somehow a single bullet break action breach loader, the Claymore appears to use the model for the front half of a piece of tank armour or something, the MAC10 is three times taller than it should be, the Dual Launcher only has two barrels but fires four grenades out of what looks like a sawn-off double barrelled shotgun model, the Havoc is an over under pump shotgun with no magazine or feed tube and so on.

I'm not sure if it's yet another instance of this developer's style of everything just being wacky nonsense that makes you feel like you're having a stroke, whether they just grabbed a bunch of models and didn't care what they were really for IRL or whether they've genuinely never seen any of these weapons before and have no idea how they're meant to work.

im not talking about if the said guns would work the same way irl or not but it's just seems like genuine model swap

I think it is intentional that the guns are all dumb, there's so much wrong I think they must be doing it on purpose.

OP you didn't realize Straftat is a brutalism fever dream? Everything is designed to put your brain in a blender and make you go cross-eyed.