Murasama Scabbard

This is my fourth entry on my Murasama project- that being the creation of a fairly capable and accurate recreation of Jetstream Sam’s HF Murasama blade from Metal Gear Rising: Reveangance. This time, though, it’s not about the blade. Instead, I’m going to talk about the design and my proposed functionality of the blade’s scabbard, which is arguable even more iconic than the red blade within- because it’s a gun.

So anyway, what’s the idea here? There isn’t a canonical, in-depth explanation, but it’s pretty obvious what’s happening:
Inside the magazine are blank cartridges, which, for those who don’t know, are like bullets without the bit of lead that flies out the barrel. They’re often used for replicating the sound of gunfire, but they can also push things pretty well. In this case, the blank cartridge propels a piston near the opening of the scabbard, which slams into a thickened part of the Murasama’s steel guard, firing it out of the scabbard at super-high speeds.

My design, unfortunately, won’t be as cool. Maybe at some point I can make the scabbard out of metal, and maybe, maybe it could run on blanks, but for now, the one I made on my 3D printer doesn’t actually do anything. The trigger doesn’t even rotate. But I have an idea I’d like to propose, that being a 3D printed version made of something very durable, such as ASA or PC filament (which is 3D printer safe material, by the way), housing a replaceable Co2 cartridge inside a non-functioning chamber/slide, that serves the same purpose as the blank cartridges do in MGR:R. It wouldn’t be nearly as strong, but then again, I’m not cutting people’s arms off with it.

It might work, it might not, but for now, it’s just an idea.