It's perfectly reasonable from a theoretical standpoint, but what kind of engineering modifications would be involved? It's not as simple as bolting a compartme

It's perfectly reasonable from a theoretical standpoint, but what kind of engineering modifications would be involved? It's not as simple as bolting a compartment to the side. They'd have to engineer something recessed so that it doesn't interfere with the aerodynamic profile of the capsule. Do-able, sure, feasible, probably not. What would happen if the capsule landed gun compartment side down? If I were a Russian engineer and project manager I'd tell you to get out of my office with such a frivolous request. Edit: I also realized that an external firearm container would likely imply the handgun would be exposed to the vacuum of space and the temperature swings involved. Given that Soyuz capsules can be in space for months at a time, there would have to be considerable re-engineering of the firearm and the ammunition in order to accommodate this proposed change.