It's a difficult one. The examples are right and logically it seems like it would fit in terms of style and technical detail, but it's perhaps a little too "unique" for general use. I can imagine some crazed old pre-war musician, now a 200 year old ghoul, living in a little camp, inventing one of these to defend himself, but I can't see it being a common weapon which the hundreds of online players in 2238 would have access to.
Special quest object, yes. Common weapon that all players would have, not so much - though there's certainly weirder stuff in Fallout 2 already (I've not played Fallout 3, so can't comment on the hand-held nuclear thingy).
Anyway, I like the imagination in it and thinking behind it, and the model's come out really nicely. Of the 3D stuff that's made, there's only a certain amount going to end up in 2238 (I'd imagine it to be "existing stuff" plus a few extras) - and this probably wouldn't be one of them, unless there was a full quest for it, but we must remember that this 3D stuff is ultimately intended for any future Fonline-based project - and if I ever make a single player Fonline game in future, I'd want
one of those in it, with the ghoul as I described above